4 FARMERS’ BULLETIN 699. 
below, designating for each floor and the different rooms the capacity 
and the amount of water, acid, and cyanid needed. 
Table designating rooms, capacity, and amounts of chemicals. 
Floor. Room. oe Water. | Acid. | Cyanid. 
0 Fi. 0z Aud. 02. 
HOUTEN oe Joh eedee eee eer eee nee nee ee Garret? 2. ose. 17,000 21 70 
BEONtes. <2. - 32 2, 800 84 28 28 
a1 TH 0 (as eae Reais Sik ae ote tt <a {sti x5 ee 1, 400 42 14 14 
Batketon. bons 2,200 66 22 22 
Heo ee eee 15,500 65 55 55 
Second en )s 43. ee eee. Sete. oe SR Middle........ 2,200 66 22 22 
Back. 25 ee 83 2, 000 60 20 20 
Parlor.... 14, 400 132 44 44 
ISU fisce Sees ee sees coe a Middiets> it 2, 400 72 24 24 
ming sass 2,900 87 29 29 
Servant’s....- 1, 200 36 12 12 
Basement sy. ccetec setae ce Ute ocee eases eets Hall ones ane 2, 000 60 20 20 
Kitchen... ..-. 1, 800 54 18 18 
Mo tal ars £47 2 oe ha, hee Aes 3 he Stee Sh DU LN eg 37, 800 | 1,138 378 378 
The house is prepared for treatment by seeing that all the win- 
dows are closed and calked, if of loose construction, with wet paper 
or cotton batting tucked tightly into the crevices. Gummed paper 
strips are obtainable for this purpose and may be pasted over the 
crevices in the doors and windows, making the room practically 
gas-tight. As the building must be aired by opening the windows 
from the outside, those selected to be opened should be examined 
to see that they pull down easily, and if too high to be reached from 
the ground should be provided with strong cords reaching to the 
ground that they may be easily opened from below. They should be 
opened before closing for the last time in order to test the strength 
of the cord and should not be pasted up or calked. The fireplace 
flues in the different rooms should be stuffed with paper and the reg- 
isters closed. Carpets and rugs should be cleared away from the 
floor as far as possible to prevent their being burned should the 
acid spatter or boil over. 
For generators, stoneware or crockery jars having a capacity of 4 
gallons are preferable and may be used with a charge of up to 3 
pounds of cyanid. One of these vessels should be placed in each 
room, with the exception of large rooms requiring a charge of more 
than 3 pounds of cyanid, when the charge may be divided. One 
vessel will suffice for each 3,000 or 4,000 cubic feet, preferably the 
former amount. Under each of these vessels a larger vessel or a 
rather thick carpeting of old newspapers should be placed, and care 
must be exercised to see that none of the vessels is cracked, on 
account of the danger of breakage from the heat generated by the 
process. Deep vessels are more satisfactory for the experiment than 
the washbasins often used, but the latter are always available and 
will serve the purpose. Deeper vessels give greater depth to the 
