However, I should lik e to p o in t o u t , a s I rem ark ed i n my t e n t a t i v e r e p l y o f June 13, t h a t t h e r e may be son r e v e r b e r a t i o n w h ich m ig h t c a u se some d is tu r b a n c e i n th e m inds o f workmen h an d lin g te tr a e th y l lead a t Paim boeuf.

Slag wool is made from magazine, in its issue of November, slags resulting from the reduction of 1888, published an article describing iron, lead, or copper ores.

In practice, it is usual to employ velocities varying from some 1,200 feet per minute for a light, fluffy material like sawdust to 5,000 feet per minute for lead dusts.

POLK'S CROCKER-LANGLEY W Wl 00 out MTT SAN FRANCISCO CITY DIRECTORY 1935 Containing an Alphabetical Directory of Business Concerns and Private Citizens, a Street and Avenue Guide and Much Information of a Miscellaneous Character ALSO A BUYERS' GUIDE and a Complete CLASSIFIED BUSINESS DIRECTORY FOR DETAILED CONTENTS SEE GENERAL INDEX R.

INTERNATIONAL LEAD REFINING Irish Glass Bottle Co.

OIL AND VARNISH DEALERS--RE TAIL (Contd) Taddeucci L P 309 Columbus av Tittemore C L 1487 Pine Tozer Co 1718 Fillmore and 2279 Mission West Coast Paint Co 900 Clement 1416 Mar ket and 2947 Mission West Paint Co 1608 Market and 1937 Mission Wilson Chas 2031 Irving Yates-Hulett Paint Co 2311 Market ZE1LER SOL, 1221 Divisadero, Tel WE st 5991 Zimmermann Sami 1354 Fillmore PAINT SPRAYING EQUIPMENT BINKS MANUFACTURING CO, 371 5th, Tel SU tter 5389 DE VILBISS COMPANY THE, 831 Howard, Tel DO uglas 3384 PAINT AND COLOR DEALERS--WHOLESALE Brown Distributing Co 2615 18th Emerick & Duncan Co 1331 Howard Federal Composition & Paint Co Inc 310 Sansome R1010 Gold Coast Paint Co 2615 18th Standard Distributing Co 1345 Mission Wailes Dove-Hermiston Corp 345 Vermont Woolsey C A Paint & Color Co 24 Calif R324 PAINT AND COLOR MANUFACTURERS Acme White Lead & Color Works 454 2d AMERICAN MARINE PAINT CO, 927 Robt Dollar Bldg, 311 California, Tel GA rfield 0606 Arco Co of Cal Ltd 1559

CHEMICAL MANUFACTURERS ASSOCIATION January 9, 1934 GERALDINE V.

Lnternational Lead Repining Co.

I doubt if the hazard is sufficient to justify warning posters as might be used where lead, benzol or carbon monoxide are concerned.

This leads to a breakdown of the DNA and possible uncontrolled re action.

Slag wool is has been found that the finer part of the colloidal fraction of the made from slags resulting from the reduction of iron, lead, of clay when mixed with the appropriate amounts of water forms copper ores.

with reference to the AsbestosisAsbestosis situation in the Asbestos industry As you no doubt know Manville ourselves have been eliminatingwiththe Metropolitan Insurence Life coing considerable work in conjunction Insurence Co. in the way of Asbestos Eust in our satisfactoryAsbestos factories and we have made a very job job of it We have now reached the point where we can eliminate a large part of the Dust but as yet have no definite information no to What Asbestosis will lead into They claim it lends to Tubercu- losis but we do not find this to be the case Still we cannot go into court and state definitely and specificallyspecifically that it will not GO SO We do know that Asbestos Fibres can and do get into the lunge and may set up & Fibrosis condition which for want of a bet- tor name some doctors have called Asbestosis Dr.

' -*C,C, "Lead P o is o n in g " ,

EPIDEMIOLOGY OF ASBESTOS CANCERS Wagner, Gilson, Berry & Timbrell EPIDEMIOLOGY OF ASBESTOS CANCERS J.

.:-- permit of effective reaction to the demands of (1) Dusts which are systemic poisons, as disease or ox advancing age or of any emer lead, arsenic, manganese, trinitrotoluene gency, and it is oniy when this reserve is and many others. . seriously enouached upon that clinical sign* (2) Irritant or corrosive dusts, as lime, of embarrassment appear.