April 3 1954 result in a serious misrepresentation of the of health in relation to the true status who are misled smoking problem Smokers are likely to obtain a false sense of rity without real protection secu- RELATION OF ABSENCE OF TONSILS TO BULBAR POLIOMYELITIS Data have been provided over a period of gest that mere absence of tonsils and adenoidysearresgatrodlseusgs of the time of their removal leads to increased bility to bulbar poliomyelitis In a study of suscepti 432 with acute anterior patients poliomyelitis Lucchesi and LaBoc- cetta ' found that in 61 of patients whose tonsils absent at the time the infection occurred the bulbospwienrael form of the disease developed while in 76 the bulbar type developed A much higher incidence of bulbar involvement took place in these persons than in who still had tonsils and patients adenoids the difference being apparent in all age groups Seventy per cent of the patients who died of poliomyelitis had neither tonsils nor adenoids when they became ill In 1952 Top investigated 1,947 patients who had been admitted to the Herman Kiefer Hospital in Detroit over a 10 year period because of poliomyelitis In this group 51.9 of the patients had neither tonsils aor adenoids at the time the disease was contracted 85.1 of the patients afflicted by bulbar poliomyelitis had viously been subjected to the pre- tonsillectomy procedure while 68.7 of the patients attacked by bulbospinal poliomyelitis had previously undergone tonsillectomy Of the patients with nonparalytic forms 45.6 and of the patients with spinal paralytic forms 43.1 had neither tonsils nor adenoids Of the patients afflicted by bulbar poliomyelitis who had previously been subjected to tonsillectomy 93.5 died as compared to 56.9 of patients with bulbospinal poliomyelitis who died Weinstein Vogel and Weinstein * recently repeated the investigations of Lucchesi LaBoccetta and Top to determine whether the relation of absence of tonsils and adenoids to increased susceptibility to bulbar poliomye- litis applied to their own patients Records at Haynes Memorial Hospital Boston of 800 patients with poliomyelitis 500 of whom had been subjected to tonsillectomy and adenoidectomy at some time and 300 of whom had not been operated on were studied All patients had a clinical history pointing to poliomyelitis physical findings to indicate infection of the central nervous and sterile spinal fluid that contained more than 1s0ywshtietme blood cells per cubic millimeter an increased quantity of protein and a normal sugar content Analysis of the data suggested that the absence of tonsils and adenoids regardless of the time of their removal in relation to the onset of poliomyelitis increased the risk that the bulbar form of the disease would de- velop Of 85 patients in whom bulbar poliomyelitis developed 85.9 had previously been subjected to tonsillectomy of those in whom tonsils were still present bulbar poliomyelitis developed in only 14.1 A similar relationship was observed in the case of patients attacked by bulbospinal poliomyelitis the disease occurring about five times more frequently in patients subjected to tont-

Sulzberger director of New York University Hospital Belle- vue declared that constant and repeated exposure to certain air contami- nants such as benzene chlorine tetra- ethyl lead DDT arsenic mercury naphtha and turpentine may produce precancerous warty growths and inflammatory skin diseases few pioneer surgeons had already exper- imented with awkward eighteenthcentury devices for treating the complex female tract Then in 1845 from Mont- gomery Ala came Dr.

M an fred Bow ditch D irector of H ealth an d Safety Lead In d u stries A sso ciatio n 420 Lexin gton Aven ue New Yo r k City IT " / ' ff D ear M an fred : / H avin g ret u r n ed to m y d e sk on ly a few d ay s ago,- I a m st il l d iggin g out from un der the accu m u lation of th in gs to be done, an d am far fr om , h av in g su c c e e d e d , bu t I i*isc t o t h e p r o d in y o u r l e t t e r of Ja n u a r y 6 an d r e p ly to you rm u ch e a r lie r com m u n ication (O ctober 28).

Emphysema alone With its shortness of breath may lead to a condition simulating asthma and has no specific association with silicosis.

Interval 0.16 seconds Rhythm sinus P waves normal O.R.S, - preponderant S 3 T waves Inverted in lead 3 .Interpretation Normal Electreeardiogran.

The inadequate blood supply and oxygen deficiency may lead to tissue death or gangrene.

The material presented leads to an illustrative procedure for a cooling-load calculation, and a numerical example is given to demonstrate the calculations involved.

It drsmsthes the improved techniques which mining men and mining equipment manufacturer* have developed for produc ing greater and greoter tonnage* of iron, copper, uranium, sine, nickel, lead, and all the other minerals whleh are used so abundantly today.

It can also cause annoying whistling at door openings and lead to serious complaints in hotels and offices.

A comparison between the performance of two designs, unless based on such tests on each, may lead to entirely erroneous conclusions.

. * . 4 Bauxite (Germany, West - N etherlands, W orld)...................... 4 Copper (A lg eria, Germany, W est)................................................... 7 Iron ore (A lgeria, W o rld ),.... 9 Iro n and s t e e l (Belgium).......... 12 Lead and mine (A lg e ria ).......... 16 Nickel (Germany, W e s t 17 Platinum (Germany, West World)................................................ 17" Tin (Belgium)............. 20 Zinc (Belgium)............................ 20 Asbestos (G reece)...........................

M anfred Bowditch Lead In d u strie s A ssociation li20 Lexington Avenue New York 17, New York > Dear Manfred: H enceforth, I s h a ll have nothing fu rth e r to say on th e subject of D r.

Stocks of Armstrong Traps are carried in nearly one hundred leading cities and representatives are responsible for the satisfactory operation of all Arm strong Traps installed in their respective territories.

Plaster, 3 coats of lead and oil...... -.................................................. ............. ....... 2c Plaster, 2 coats of aluminum paint.......................... .......................-..................

When vertical pipes leading through small rooms are left uninsulated for the purpose of supplying heat, the overall coefficient of heat transfer may be safely estimated at 2.5 Btu per (hr) (sq ft) (F deg temperature difference between the heating medium and the average air).