32 CIRCULAR 8 6 9, U. S. DEPARTMENT OF AGRICULTURE 



Except where electric fans are to be used, disconnect all electric 

 lines and telephone lines into the building or chamber — prefer- 

 ably outside the building*. Use only sparkproof and explosion- 

 proof electric fans. 



Keep all persons and domestic animals outside the building or 

 chamber when it is finally closed and sealed for fumigation. 

 Post placards in prominent places on the building or chamber, 

 warning that it is being fumigated with poison gas. 



Keep guards and night watchmen on duty to see that no person 

 or domestic animal approaches a building under fumigation. 



Wear or carry gas masks equipped with the proper canisters at 

 all times when handling gas. 



Local authorities should be notified of the intention to fumigate 

 and any necessary permits obtained from them. These officials should 

 be notified again when the fumigation is completed and the building 

 has been properly ventilated. 



Before fumigation, the interested fire insurance underwriters should 

 be notified, and their approval of the procedure obtained. 



SUGGESTIONS FOR FURTHER READING 



ALFIEKI, A. 



1931. LES INSECTES DE LA TOMBE DE TOUTANKHAMON. SOC. ROY. Ent. 



d'Egypte, Bui. 1931 (3-4) : 188-189. 

 Atkinson, G. F. 



1886. THE CIGARETTE BEETLE (LASIODERMA SERRICORNE FAB.). Elisha 



Mitchell Sci. Soc. Jour. 1885-86 : 68-73. 

 Back, E. A., and Reed, W. D. 



1930. EPHESTIA ELUTELLA HUBNER. A NEW PEST OF CURED TOBACCO IN THE 



united states. Jour. Econ. Ent. 23 : 1004-1006. 

 Bake, C. O., and Tenhet, J. N. 



1950. TESTS WITH ACRYLONITRILE-CARBON TETRACHLORIDE AND HYDROGEN 



CYANIDE as fumigants for insects in cigarette tobaccos. U. S. 



Bur. Ent. and Plant Quar. E-794, 10 pp. [Processed.] 

 Guerin-Meneville, P. E. 



1850. enumeration des insectes que constjmment les tabacs. Rev. et 



Mag. de Zool.. ser. 2, V : 426-442. 

 Reed, W. D., and Vinzant, J. P. 



1942. CONTROL OF INSECTS ATTACKING STORED TOBACCO AND TOBACCO PROD- 

 UCTS. U. S. Dept. Agr. Cir. 635, 40 pp., illns. 

 Roop, Q. W. 



1949. PLASTIC SEALING OF TOBACCO-STORAGE WAREHOUSES. U. S. Dept. AfiT- 



Misc. Pub. 684, 34 pp., illus. 

 Swingle, M. C. 



1938. LOW TEMPERATURE AS A POSSIBLE MEANS OF CONTROLLING THE CIG- 

 ARETTE beetle in stored tobacco. U. S. Dept. Agr. Cir. 462, 8 pp. 

 Tenhet. J. X. 



1949. CONTROL OF INSECTS IN STORED TOBACCO WITH PYRETHRUM-OIL SPRAY 



U. S. Bur. Ent. and Plant Quar. EC-9, 8 pp. [Processed.] 



1949. EXPERIMENTS WITH PYRETHRUM-OIL SPRAYS FOR CONTROL OF THE 

 TOBACCO MOTH AND THE CIGARETTE BEETLE. U. S. BUT. Ent. and 



Plant Quar. E-791, 12 pp. [Processed.] 

 White, W. H. 



1948. REPORT (t\ EXPERIMENTS WITH METHYL BROMIDE AS A FTJMIGANT FOR 



stored tobacco. U. S. Bur. Ent. and Plant Quar. E-753, 10 pp. 

 [Processed.] 



U. S. GOVERNMENT PRINTING OFFICE: 1951 



For sale by t 1 1 « - Superintendent of Documents. U. S. Government Printing Office 

 Washington '-'•"(. L). C. - Price 15 cents 



