Document MrxjG2M0wzMM9gaK1bd5VY7a

Hr* AlhartXdvardrr~ Ffcbrarr'ltr 1961^ Pacer 2 7* Bentonite Cla7, . Hade by American Colloid3 Co. Skokie, Illinois * 8. Expanded Perlite,. 2 to 2.5 lb3. per cubic foot. Hade from Nu Alexita Cre and furnished by Great Lakes Carbon Co. . - 18 E. J>.Qth St. -. - New York, H,, Y, Over-exposure to any siliceous dust in a closely confined, unventilatcd area may cause irritation. However-, none of the 'materials usedTIn'"cur~femulation,..of _Careytemp is toxic. * This ~Is- our first complaint, and we-will be happy to furnish youkany additional--information upon~your request. Sincerely, . X. A. Pechstein "Assistant Secretary