(2) Arrange for the opening of doors and windows from*the outside 
at the conclusion of the fumigation, and close all registers, fireplaces, 
and other openings. Do necessary calking and remove carpets and 
rugs and moist food material and any metallic objects which are likely 
to be tarnished. 
(3) Place the generating vessels in each room with a thick carpeting 
of old newspapers under each. 
(4) Break up the cyanide out of doors and place it in thin paper 
sacks containing a pound or a half pound each, suited to the amounts 
to be used in the different rooms. 
(5) Measure into each of the generating jars the proper am >unt of 
water, and afterwards add the acid slowly in the proper amount to each of 
the Jars. 
(6) Take the cyanide in bags in a basket and place the bags to the 
proper amount alongside of the generating jars in each room. 
(7) Start at the top of the house and place the cyanide gently, so as 
not to spatter, into each jar, and quickly leave the room. As soon as 
the upper floor is finished go to the next lower, and pass in this manner 
from floor to floor until the basement is reached and exit is made 
through the lower door. If two persons work together in this operation, 
they should both be on the same floor together, taking different rooms. 
(8) The following day, or after the completion of the fumigation, 
open the windows and doors from the outside, and let the house 
ventilate for an hour before entering it. 
(9) After the house is thoroughly ventilated and the odor of the gas 
has disappeared, the jars should be emptied in a safe place, preferably 
through the sewer trap, and thoroughly and repeatedly washed before 
being used for any household purpose. 
Approved: 
JAMES WILSON, 
Secretary of Agriculture. 
WasHINGTON, D. C., January 30, 1907. 
Fo 
NY 
