Circular 21 - Insecticides and Subsidiary Materials 83 
10. Apex Chemical Co., Inc., New York, N. Y. 
11. Associated Chemists, Inc., Chicago, 111. 
12. Atlantic Turpentine and Pine Tar Co., 
Savannah , G-a . 
13. Atlas Asbestos Co., N. Wales, Pa. 
14. Barada & Page, Inc., Kansas City, Mo. 
15. Barber Laboratories, New Orleans, La. 
16. Bartlett Chemicals, Inc., New Orleans, La. 
17. J. H, Baxter & Co., Los Angeles, Calif. 
18. Braun-Knecht-Heimann Co., San Francisco, Cal. 
19. California Spray-Chemical Corp., Richmond, 
Calif. 
20. Capitol Chemical Co., Washington, D. C. 
21. Carbide & Carbon Chemical Corp., New York 
City, N. Y. 
22. Central Chemical Corp., Hagerstown, Md. 
23. Chicago Sanitary Products Co., Chicago, 111. 
24. Chipman Chemical Co., Inc., Bound Brook, N.I 
25. Harry Cohen, Atlanta, Ga . 
26. Common Sense Mfg. Co., Buffalo, N. Y. 
27. vVm. Cooper & Nephews, Chicago, 111. 
28. Creosote Sales Corp., Baltimore, Md. 
29. Creo-tox Chemical Products Co., Memphis, 
Tenn. 
30. Crystal Soap and Chemical Co., Inc., 
Philadelphia, Pa. 
31. Cunningham & Co., Seattle, Wash. 
32. Daigger Sc Co., Chicago, 111. 
33. Demotex Inc., New York City, N, Y. 
34.- Denver Fire & Clay Co., Denver, Colorado 
35. Derris, Inc., New York City, N. Y. 
36. Dow Chemical Co., Midland, Mich. 
37. E. I. du Pont de Nemours & Co., Inc., 
Wilmington , Del . 
38. Eastern Color & Chemical Co., New York, N.Y. 
39. Eastman Kodak Company, Chemical Sales 
Division, Rochester, N. Y. 
40. Ehret Magnesia Mfg. Co., Valley Forge, Pa. 
41. Foot Mineral Co., Philadelphia, Pa. 
42. Fritzsche Bros., Inc., New York City, N. Y. 
43. Fuld Bros., Baltimore, Md. 
