44 NEW YORK STATE MUSEUM 



The following memoranda will doubtless prove of service in 

 practical work. 



1 Estimate the cubical contents and the amount of materials for 



each room. 



2 Remove all liquids and moist foods in particular. 



3 Seal all exits tightly with strips of paper or by filling crevices. 



4 Provide for ventilation from the outside. 



5 Weigh out the cyanide and place it in thin bags or do it up 



loosely in thin paper. 



6 Place the generators in the various rooms, each upon a thick 



layer of newspapers. 



7 Dilute the acid carefully and put it in the generators. 



8 Distribute the amounts of cyanide to the various rooms. 



9 Be certain that everything is all right and nobody in the build- 



ing or room. Notify occupants of adjacent rooms or houses 

 that the fumigation is to be commenced. 



10 Drop in the cyanide, preferably from near the exit and close 



tightly. 



11 Adopt suitable precautions to prevent the room or building 



being entered during the fumigation period. 



12 Open the ventilators from the outside. 



13 After the building has been thoroughly aerated, remove the 



generators and take care of their contents together w'ith any 

 excess of cyanide. 



