Document eZr8pg9pOLDQyR59jrM7j8p9

i 1958 Chahles S. I'kvhce. Editor Mary J. Gibb, Associate Editor M. Geraldine Smith, Assistant Editor Mary Ortiioefer Streets, Editorial Assistant RaE Davidson, Editorial Assistant Committee on Publications: W. Raymond Kerr. Chairman: J. O. Everhart. E. P. McNamara, and E. F. Osborn Technical Adviser: Margie K. Reser Compiled by The American Ceramic Society, Inc. 4055 North High Street Columbus 14, Ohio PLAINTIFF'S EXHIBIT II VJv-no^70 1958 A', Production Er-iipincr t and (, nit Operations ~J conductin'? cleaned asbestos fiber away from the furaininous mem baffle structures projecting into the gj, stream and pren-nti:tg u ber, means for withdrawing an airstream and entrained dust and sloping face upstream and a substantially perpendicular face jranular material axially from within the foraminous member at downstream, the baffles on opposed plates being positioned :r: one end of the casing, a driven shaft mounted for rotation a:ong a opposed parallel relation DJ n the axis of the casing, and at least one generally radial baffle Electrostatic precipitators. John E. McDonald and William mounted on the shaft for rotation therewith, the baffle extending lengthwise of the foraminous member and being arranged to sweep J. Roos(Westinghouse Electric C<<rp.i. U. S. 2,317,413, Dec. _'i. 1957.-- L. An electrostatic precipitator comprises a collector ceil close to the interior surface thereof, the shaft and baffle being _ having a piurality of parallel spaced-apart collector plate sutfaccs. Hunted to be rotated by suitable power means. D.J.3. some of the surfaces being conductive, others of the surfaces hav Appxrsrus for tamping ceramic powders. Soc. Anon. Eta- ing a plurality of spaced-apart conductive lines thereon from their busssmsnts A. V aluy asp Materiel Cerauique Moderns entering portions to their air leaving portions, the others of the S. i a- - Brit. 732,560, June 29, 1955 --Equipment is claimed j, surfaces being dielectrics except for the lines, the air entering for taraping a ceramic powder in a vacuum. Cf. Ceram. Ab:ir.. edges of the dielectric surfaces extending outwardly beyond the 1936, Oct., p. 213/. B.C.R.A. air entering edges of the conductive surfaces. D.J.B. Arrangement for controlling the throughput of a fine pulveru- Equipment for charging fiber-containing slurry into molds. l*nt material through a port. RenS J. H. Planiol. U. S. 2,817,- -- Clyde R. Hctchcroft, Willard R. Sbipt. and Robert a. 361, Dec. 24, 195,.--1. In combination with an apparatus for Schneider (Keasbey & Mattison Co.). U. S. 2,816,321, Dec. 17. feeding a pulverulent material from a vertical container through 1957.--i. Equipment for charging elongated molds with nber- , as annular outlet at its lower end, which comprises means for cuntaining slurry to be molded therein comprises, in combination {getting gas into the container above the level of the pulverulent c with a viscous flow supply line for such slurry, an elongated charge material, means for controlling the pressure of the gas inside the measuring device having a slurrv inlet at one end in communica container, and auxiliary nozzles arranged to blow a gaseous fluid tion with the supply line and having an elongated discharge open into the container immediately adjacent the annular outlet, a ing along the bottom or the device for sidewise delivery of a rotatable and vertically adjustable conical needle valve is arranged -- charge into a mold, means for intermittently introducing slurry is a port in the container to form the annular outlet. D.J.B. from the supply line into the charge measuring device through the Ball mills and litre rotary chamber apparatus. F. Lises. Brit. inlet opening, and an elongated dispiaceahle closure member for 730,494, May 25.1955.--The object is to provide a ball miil that is the discharge opening. D.J.B. sot subject to a critical speed of lotatioo. The mill rotates about C Filter presses. J. R. Cctcv A.-G. Brit 727,091, March 30. its own axis and simultaneously revolves about a parallel fixed 1955. B.C.R.A. Tts- the distance apart of the axes being appreciably less than Heat exchanger mixing railL John J. Fischer (Patterson- the radius of the chamber. B.C.R.A. Kelley Co., rnc.j. C. S. 2,316,371, Dec. 17. 1957--1. Ir. a Brickmalring machines. J. B. HBwrrr. Brit. 720,569, Dec. -- material agitating and heat exchange mill, a container for the ma 22, 1954.--Clay is extruded from a pug directly into cavities in terial to be processed, inlet means for charging the container with metal cylinders placed against the mouthpiece; the clots of clay material to be processed, outlet means for discharging processed are then pushed out of the cavities. B.C.R.A. material, means mounting the container for rotation to tumble the Bride presses. National Coal Board. Brit. 723,663, Feb. c material therewithin, a hollow shaft disposed transversely within 9, 1955.--A repress machine is described in which green brick is the container and supported for independent rotation thcre- fed automatically into a mold for repressing. A safety device within, the hollow shaft having a plurality of tubular members prevents unintentional emrv of the ram into the mold. extending diametrically therethrough and radially therefrom at B.C.R.A. -- intervals longitudinally of the shaft whereby the tubular mem Carrier devices for brick, block, etc. C. J. R. Willmbnt and bers extend into the material being processed for agitating it as R. E. Willment. Brit. 733,582, July 13. 1955; abstracted in the container and the hoilow shaft rotate, tile tubular members Brit. Caytcorier. 65 [770| 31-82 (1956).--The device comprises a being opened at their opposite ends and being apenured at posi rigid frame to which are attached two pairs of gripper arms hav- j tions interiorly of the hoilow shaft, means for introducing fluid ing s common actuating member. The gripper arms preferably material into one end cf the hoilow shaft from exteriorly of the have tongues or forklike projections on the end so that they fit mill, means for permitting escape of fluid materials from the othe: under the lower surface of the brick or block as a support. end of the shaft to a position exteriorly of the miil. and partition B.C.R.A. Sc C.M.C. -- means disposed intermediately of the opposite ends of the hollow- Common power supply for precipitator homes with individual shaft thereby subdividing the latter into inlet and culiei end i impel- Hans Klemperer (APRA Precipitator Corp.j. 0. S. portions, whereby fluid material entering the inlet end portion ol 2,817,412, Dec. 24. 1957. D.J.B. the hoilow shaft finds escape through some of the tubular mem Conveyers for bulk materials. Doulton Sc Co.. Ltd. Brit. 17 bers into the material being processed within the container white 729,799, May II. 1955.--An air-slide conveyer is made nnnwet- table by treatment with a silicone. B.C.R.A. the material is being agitated by the tubular members, and whereby fluid material within the container finds escape by pass Crashing jaws and anvils for ruck-crushing machines. Louis ing into the outer ends of other of the tubular members to gain W. Johnson. U. S. 2,316.717, Dec. 17. 1957.--4. In a double- -- access to the interior of the discharge end of the hollow shaft while acting rock-crushing machine havtng a crushing jaw operating the tubular members are agitating the material within the con between normally stationary anvils, a wear plate attached to each tainer. D.J.B. ode of the crushing jaw, tensioning means carried by the crushing Manufacture of brick and block. H. F. Barclay. Brit. 732,- for simultaneously applying tensile stresses to both of the ^ 831, June 29. 1955; abstracted in Bril. Clayvorker, 64 (7601 152 wear plates in the direction of metal migration caused by the (1955).--An open mold, made from hinged plates, is intended for pealing action of rocks being crushed, a wear plate attached to the handmolding of small quantities of brick. each of the anvils and opposing the wear plates of the crushing B.C.R.A. 8: C.M.C. Jw, and tensioning means carried by the anvils for applying ten- Method and apparatus for the magnetic separation of loose ate stresses to their respective wear plates and maintaining the material containing magnetizable parts. Veitscher Macnbsit- plates in tension in the direction of metal migration caused by the WBRKE A.-G. Brit. 730,405, May 25. 1955.--The material to be posting action of rocks being crushed by the jaw. D.J.3. treated is discharged as powder or granules at an angle toward the Hectrostatic precipitator. John A. Armstrong. Philip 1 poles of an electromagnet. B.C.R.A. Coopsrsia.v. and Harry J. Whits (Research Corp.). U. S. Method of making ceramic forms. Rudolph V. Ga.nz. U. 2413,824, Dec. 10. 1957.--1. In an electrostatic precipitator S. 2,316,347, Dec. 17, 1957.--1. The method of manufacturing a saving a plurality of spaced parallel discharge electrodes arranged cast ceramic dipping form in the mold cavity of a mold having fa a row and collecting plate electrodes extending in parallel air and water pervious walls comprises preforming a design mem paced relation to the row of discharge electrodes, the combination ber having a flexible plastic sheet facing element and a ceramic tth the collecting electrode plate of a plurality of baffles extend- sheet backing element, the facing element being relatively smooth fagin parallel spaced relation frimi the plate electrode transversely on one side and having an embossed design on the other side, the af the directiun of gas flow, each of the baffles comprising a base 1 hacking clement being molded on one side against the embossed Portion extending normally to the extended surface of the collect side of the facing element and having its opposite side relatively ing plate and to the direction of gas flow and a leg portion sloping smooth and in generally parallel relation to the smooth side ot the inwardly and upstream from the extended edge of the base por- facing element, securing the design member to the innci molding tfan to the collecting plate, thereby providing right triangular surface of the mold with the smooth surface of the facing element 195S XII, Kilns, Furnaces, Fuels, and Combustion--XIII, Materials 1S3 t pair of supporting elements on opposite sides of the kiln engag ing each tire, a rigid mounting for at least one element of the pair engaging the the adjacent the gear, a rigid mounting for at least one element of a pair engaging a tire on the opposite side of the gear from the adjacent tire, the rigidly mounted elements be ing substantially coaxial, resilient mountings for the elements en gaging the remaining tires, means for rotating the shell including a pinion meshing with the gear at the same side of the kiln as the rigidly mounted elements, and means for introducing a combus tible mixture into the kiln at one end. DJ.3. Additional abstract Sect. VII: (patent) Refractory. XIII--Materials Abrasive materials. Henry P. Chandler and Gertrude E. Germanium enrichment in lignites from the Lower Lias in Tucker. U. S. Bur. Mines Minerals Yearbook (preprint), 1955, Dorset, England. A. Hallam and K. W. Payne. Nature 181 Vol. 1.20 pp.. 5 figures. 15e. Govt. Printing Office. Washington [4614J 1008-1009 (1958). 6 references. V.R.E. 25, D. C. Asbestos. D. 0. Kennedy and Annie L. Marks. __ Lithium; its extraction from Western Australian spodumene Ibid.. 14 pp.. 1 figure. 10c. Barite. Albert E. Schrbck and ore (with notes on the ceramic and other uses of its compounds). James M. Folby. Ibid., 11 pp. 10c. Bauxite. Richard C. I. J. Bear. Chem. Eng. Mining Rev., 50, 40--46 (1953).--The Wilmot. Arden C. Sullivan, and Mary E. Trought. Ibid., 22 ceramic uses of spodumene and lithium carbonate, manganite. pp., 2 figures. 15e. Clsjrs. Brooke L. Gunsallus and c cobaltite, silicate, titar.ate, zirconate. and zirconium silicate Eleanor V. Blankenbaksr. Ibid., 25 pp.. 3 figures. 15c. are mentioned with a bibliography. Lithium was successfully Gypsum. Lbonard P. Larson and Nan C. Jensen. Ibid., 16 prepared from spodumene in the laboratory by several methods. pp., 3 figures. lOe. Mica. Milford L. Skow and Gertrude E. The source of the spodumene was Mt. Marion about 20 miles Tucker. Ibid., 29 pp., 2 figures. 15c. Minor nonmetals. D. -- southwest of Kalgoorlie. Western Australia. 49 references. 0. Kennedy, Albert Schrbck, and Annie L. Marjcs. Ibid., 3 W.O.W. pp. oe. Pumice. L. M. Oris and Annie L. Marks. Ibid.. Mineral deposits of Cuba. D. J. Simmons. Mining J. (Lon 10 pp.. 2 figures. 1Oi. M.J.K. don), 250 [ 6399j 409-10 (1958).--Manganese, barytes, and chro Asbestos industry. Oliver Bov-t.es. U. S. Bur. Mines Bull., d mite are mentioned. V.R.E. 1953, No. 552, 122 pp.; revision of Bull. No. 403 (1937). Govt. Mining and processing of [Virginia| kyanite. D. Drxos-.' Printing Office. Washington 25, D C. SI. Up-to-date informa Class, 35 [4] 158-50 (1958). 2 figures. V.R.E. tion on asbestos is presented, including origin, history, utiliza Niobium in sea water. D. B. Carlisle and L. G. Hummer- tion, production, reserves, international trade, mining, milling, -- stone. Nature. 181 [4614) 1002-1003 (1958). V.R.E. marketing, beneficialion, and the manufacture of asbestos prod Note on the aluminum oxide monohydrate. H. Ginsberg and ucts. 15 figures. M.J.K. M. KOstbr. Z. anorg. u. allgem. Chem., 271 [1-2J 41--48 (1953).-- Asbestos industry La 1956. Anon. U. S. Bur. Mines Mineral The literature on aluminum oxide monohydrate (AIjOj-HtO) was Market Survey, 1957, MMS 2658, 2 pp. Bauxite in 1956. Ibid.. e reviewed and checked by experiments to obtain exact knowledge MMS 2883. 13 pp. Clay production and uses--1956 summary. on its existence and properties. The influence of time, tempera Ibid., MMS 2671, 3 pp. Fire-clay production increased in 1956. ture. and concentration on the transition of the hydrate was de Ibid., MMS 2675, 2 pp. Gypsum and gypsum products--final termined. The alkali concentration in the suspension has a great tunnal figures, 1956. Ibid., MMS 2692, 12 pp. Mica--block -- effect on the bulk density of the aluminum oxide monohvdrate and film mica fabricated in the first half of 1957. Ibid., MMS and also on the properties o: the =-AlrO, prepared from it. Prib- 2717, 11 pp. Mica in 1956. Ibid., MMS 2689, 19 pp.; supple ably this influence of small amounts of alkali is due to the in ment. Ibid., MMS 2689, 4 pp. Perlite in 1956. Ibid., MMS corporation of NaiO into the lattice, mainly at places where the 2700.2 pp. Vermiculite in 1956. Ibid.. MMS 2704, 2 pp. Each / hydrate or oxide lattice :s defective. The practical application aurvey free from Pubs. Distrib. Sect.. U. S. Bur. Mines. Pitts is the preparation of materials with different bulk density (0.25 to burgh 13. Pa. M.J.K. 0.65 gm./cm.1 for aluminum oxide), which have different surface Brazilian kaolins with a tubular particle shape. Hbtnz Ur properties. 2 figures, 14 references. G.3. ban. ron-.nd.-dtg. u. I\eram. Rundschau, 32 I3/4J 41--13 (1953). -- Occurrence of beryllium oxide in polycrystailine beryllium. --Three clays hitherto classified as kaolins but which eihibit a V. D. Scott a.vd H. Wrjws. Nature, 181 [4613| 902-^03 tubular shape of particle were examined with the electron micro (1958). 1 figure. 6 references. V.R.E. scope and by X-ray diffraction. In no case was the chief mineral Production of alumina by the continuous extraction of bauxite constituent kaolinite. Two clays contained 85% halloysite, and 0 in towers. S. Zalar. .Vora Proiroodnja, 1952, No. 4-5. pp. the other. 25%. There is some evidence that the halloysite was 337--51; abstracted in 3rit. Aluminium Co., Lid.. Light Metals farmed from the original kaoiinite mineral. 7 figures. 3 refer 3uU,, 20 [5| 163 (1958).--The extraction of the bauxite in the ences. J.A.S. towers is a continuous process at an Na,0 to Al,Ot ratio of 1.45 to Cellulose derivative* in the ceramic industry. J. Stawitz. -- 1.65, a temperature of 200*C., and a pressure of 10 to 20 atm. Ber. deut. keratn. Ges., 35 [2| 56-59 (1958). 3 figures. 1 reference, a. Ceram. Abstr., 1957, Feb., p. 41A. J.A.S. The liquor flows through the towers (four, connected in series) at a rate of 1 to 2 m./hr. Heat requirements, 2250 cal./kg. of Al,Ot- Clay minerals and permeabilities of Appalachian oil sands. are much less than those in the conventional Bayer process (6000 E. M. Tignor. U. S. Bur. Mines Kept. Invest., 1958, No. 5379. 30 ^ caj./kg. of Al,Oi). Improved desilication permits the treatment PP. Free. Pubs. Distrib. Sect.. U. S. Bur. Mines. Pittsburgh of bauxites containing more than 5% SiOj. V.R.E. 13. Pa.--T. presents results of an investigation made to identify Production of alumina from kaolin-containing clays. P. the clay minerals in some Appalachian petroleum-reservoir sands, Lopez Gomez. Ion. 16, 410-17 (1956); abstracted in Brit. Alu tbe effect, of clay content on the fiuid-fiow behavior of the sands. minium Co., Lid., Light Metals dull., 20 [6[ 200 (1958).--The *d the use of brines in waterflooding operations. 26 figures. fundamental reaction is AI-.(SO,), -r 18H,0 -r 3Mg(CO;H',, -- M.J.K. Al,(COi)i -r 3MgSO. -r 21H;0 4- 3CO,. followed by AW CO,), - Comparative study of statistical analysis and other methods of 6HtO " 3COt 3H,0 -r 2[AHOH)i[. The process consists of computing ore reserves, utilizing analytical data from Maggie 1 two operations carried out simultaneously; (1) production of Canyon manganese deposit. Artillery Mountains region, Mohave concentrated solution of AWSO)i. from which alumina is ex County, Ariz. Scott W. Hazen, Jr. U. S. Bur. Mines Rept. tracted, and (2) production of a solution of Mg(CO|H)t. used as a 1958, No. 5375, 188 pp. 31. Govt. Printing Office. Wash- __ precipitating agent. In the industrial procedure dolomite is com fton 25, D. C.--H. studies the use of statistical analysis to esti- minuted. calcined at 500C. in the presence of superheated steam, *te the grade and tonnage of ore in a mineral deposit. He dis then bicarbonated by CO? in an aqueous solution; details of the eases methods used in sampling and computing ore reserves in chemical equilibrium of the CaCOi-MgCOi-COr-HjO system Ck Maggie Canyon area and compares four methods used in are given. The kaolin-containing clay, in order to oxidize the Pacing the grade and tonnage estimates; cross section, polygon, 1 iron and expel the water, is roasted and then methodically leached tangle, and statistical analysis. Surface drilling, underground at 70"C. by HrSO# of 02 to 60*B4. Silica gel is separated by de kiting, and drift sampling are also compared. The simpler cantation and filtration. Through the reaction of the magne **P*cts of statistical analysis are discussed in detail. 33 figures. sium bicarbonate solution with the solution of aluminum sulfate, M.J.K. alumina in suspension is obtained which may be separated by the -T26 Ceramic Abstracts N overnbe studying the associations ami the results of the application of these an atomic vapor which emus radiation, passing through the atomic methods to various chemicals and minerals. 47 references vapor a beam of radiation the spectrum of which contains an "Thermocvr.amic theory of diffusion," (in French), by S. R. de atomic spectral line characteristic of a member of the group, and Croot.--C. discusses the derivation of a general expression for e.n- a measuring the ratio between the incident and emergent intensi. tropy for the diffusion phenomena in a mixture of charged and ties nl the beam, which ratio ;s determinative of the cor.ccntra. uncharged chemical components from the thermodynamics of lion nl the member. D.J.B irreversible processes. 11 references. "Study of fast reactions Preparation of active contact masses from kaolin clavs. by means of mass spectrometry," (in French), by C. Ouellet.--O. __ Joseph J. Donovan and Thomas H. Milliken. Jr (Hnudrv discusses the identification of vapor species in flames, etc., by Process Corp ). U. S. 2,348,422, Aug. 19. 1958 --2. A method mass spectrometry. 33 references. "Chalcogcnides of the tran for forming a hydrocarbon conversion catalyst comprises con- sition elements." (in German), by H. Haraldsen. -- H. reviews the tacting a kaolin clay at about 650 to 90<)oF. with a gas containing recent crystal chemistry of the sulfides, etc., and oxides of the about 6 to 45 mole % suifur trioxide for a period at least sufficient transition elements. "New developments in boron chemistry." to effect incorporation of about 22% SO, by weight in the clay (in German), by E. Wiberg.--W. discusses the crystal chemistry, and then desulfating the clay by contacting it with a reducing gaj chemical bonds, and reactions of the compounds of boron. "Pro at elevated temperatures. D.J.B. toactinium and neighboring elements." by A. G. Maddock. -- Preparation of kaolin catalysts. Georcs A. Mills and Gbr- "High temperature chemistry'--a pioneering field." by L. Brewer. hardt Talvenheimo (Houdry Process Corp.). U. S. 2,848,423, -- B. emphasizes the unexplored nature of the high temperature Aug. 19. 1953. -- 1. A process of preparing gTanular aggregates of field and the lack of guide lines to predict reactions, etc., at high a catalytic contact material from kaolin clay includes the steps of temperature. He illustrates his points with examples of the c subjecting a plastic kaolin clay containing particles of > 2u size vaporization process and the rather unpredictable nature of the and finer sized particles to a procedure effective in separating the vapor species above a subliming solid. The case of phases stable particles to form a fraction composed of <S0% particles of 2M size at high temperature but unstable at low temperature is also dis and smaller, shaping the fraction consisting predominantly of cussed. The case of SiO is mentioned. 22 references. "Syn- -- such 2u size and smaller particle* of such plastic kaolin into granu thesis and properties of inorganic compounds of germanium," lar aggregates, subjecting such aggregates to an elevated tem (in French), by H. Nowotny and A. Withmann. S. Zerposs perature treatment to form attrition resistant aggregates, subject PATENTS ing such heat-treated aggregates to a gas stream containing hv^ drogen sulfide at < 1200F. to form partially reacted aggregates, Catalyst and method of preparation therefor. Cyril Roman- subjecting such partially reacted aggregates at an elevated tem ovsky and Thomas E. Jordan (Publicker Industries. Inc.). perature to a reactant gas containing ammonium chloride for the U. S. 2,830,463, Sept. 2, 1958.--5. A method for manufacturing selective removal of a portion of the iron content of the kaolin to a catalyst useful for the direct catalytic conversion of ethyl al- -- purify the kaolin, and subjecting the purified aggregates to fur cohol to butadiene comprises forming a solution of calcium ions, ther heat-treatment to prepare granular aggregates of a cracking nickel ions, and phosphate ions, the solution containing 7.5 to catalyst possessing a significantly higher activity for the cracking 9.2 atoms of calcium per atom of nickel, rendering the solution of high boiling hydrocarbons to hydrocarbons of the gasoline nonacidic and precipitating a normal metal phosphate material e boiling range than granular aggregates prepared from particles composed of phosphate radicals chemically combined with cal having a particle size > 2a. D.J.B. cium and nickel in the relative proportion of 7.5 to 9.2 atoms of Silica-alumina-chromium fluoride catalytic compositions, their calaura per atom of nickel, and commingling a minor weight per preparation, and their use in hydrocarbon conversions. Alfred centage of the normal metal phosphate material with a major -- E. Hixschlsr (Sun Oil Co ). U. S. 2,349,382, Aug. 26, 1953.--!. weight percentage of magnesia and silica to form a substantially A catalyst for the conversion of hydrocarbons consists essentially homogeneous mixture having improved catalytic conversion ol a synthetic silica-alumina composition impregnated with 4 to characteristics for catalyzing the direct conversion of ethyl 19% by weight, based on the final composition, of chromium alcohol to butadiene. D.J.B. / fluoride, the radius of the pores of the catalyst being 135 to 300 Method of and apparatus for spectrochemical analysis. Alan a.u.. and the surface area of the catalyst being 20 to 90 m.'.'gn. Walsh (Commonwealth Scientific and Industrial Research D.J.3. Organization). U. S. 2,347,399, Aug. 19, 1958.--1. A method of determining ipectrochemicallv the concentration in a substance -- Additional abstract of a member of the group consisting of an element and isotopes of Sect. HI: Thermodynamic investigation of the soiid reactinn* that element comprises the steps of converting the substance into in silicate systems. XV--General Ceramics and nuclear energy. Cblbstino Ficai. Faenza, 44 (21 40--46 (1958).--The principles of nuclear energy, the theories involved, and methods of practical utilization are explained. Apparatus and installation are described, and ceramic materials utilizable in the construction of equipment, in control, and in protection from radiation are discussed. 1 figure. M.Ha. Ceramographic exhibit. Anon. Am. Ceram. Soe. Bull.. 37 [9] 419 (1958).--Three winning photomicrographs are shown. Cf. ibid.. 36 (7( 283 (1957). Economic trends in the ceramic industry. C. W. Plants. Am. Ceram. Soc. Bull., 37 [9| 414--15 (1958). Glamour course for other engineering students. Lane Mitchell. Am. Ceram. Soc. Bull., 37 [9| 417 (1958).--The Georgia Institute of Technology offers an elective course in ce ramic materials and processes for students enrolled in other curricula. Since it was initiated, more than 5000 men have taken the course. Guide to materials standards and specifications: 5, Nonmetallics (except plastics and rubber). S. P. Kaidanovsky. Materi als in Design Eng., 48 (1| 93-95 (1958).--Standards and specifica tions prepared by Government agencies and national organiza tions are compiled. Of ceramic interest are those tabulated un der glass, mica, asbestos, and mineral wool and some under the miscellaneous group, such as thermal insulation, cemented car bides. and ceramics for electrical uses. D.J.B. Materials for space traveler. Rodney A. Jones. Metal Progr., 74 (1J 78-82 (1958).--J. summarizes the effect of high vacuum, solar radiation, meteorite dust, cosmic rays, zero grav ity, and ionized atoms on materials used in space vehicles. No specific materials are mentioned. 2 figures. D.J.B. New developments in ceramics. John H. Kobnic. Materials in Design Eng.. 47 [5| 121-36 (1958).--K. discusses ceramics for nuclear, high temperature, electrical, and mechanical uses. Re cent developments in the most important materials in each field are covered. Properties are discussed and tabulated with some suggested uses. This review is very complete and forms Manual No. 148 of Materials in Design Eng. It is available as a separate reprint. 11 photos, 15 references. Cf. Ceram. Abstr., 1958, Feb., p. 60a. D.J.B.