May 9 , 1940 BR.

ETHYL CORPORATION IN T ER - O FFICE CO R R ESP O N D EN CE AIR MAIL t o Dr.

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LIST November 23 , 194-3 Peters and Van Voorhis Statistical Procedures and Their Mathematical Basis McGraw-Hill Book Co., New York, 194-0. ** Fisher & Yates Statistical Tables for Biological, Agricultural and Medical Research - Hafner, New York, 1943

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W a r r e n E.

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VOLUME THIRTEEN MARCH, 1943 NUMBER TWC One 0/ the " proojing of army reproofing "* l'ermm '^\7been ?

VOLUME SIXTEEN SEPTEMBER-OCTOBER 1946 NUMBER FIVE Soda Fountain and Restaurant Kitchen Floors the New \ ork Central Railroad.

April 1949 0000-NLI-000022158 jbuicU feau Reprinted from the April 1949 Issue of MODERN PACKAGING Copyrighted.

August 27, 1945 (19; Dr.