12 
Tables designating dimensions and cubic contents of each floor and amount of chemicals. 
TEN-OUNCE TABLE. 
Ser a on CED IC je ee ae Tatar | G@ener- 
Floor. Dimensions. | Foot. Cyanid. Acid. | Water. | Stor 
3 Pounds. | Pints. Pints. 
Basementas. seus saeot eo tee cer setae es 40 x 60 x 10 24,000 15 15 45 | 5 
BESGMOOTs sean cece eee es Seen eae eas 40x 60x18 | 43,200 27 | 27 81 | 9 
Second floor ss ce esa eens staewe eeieeioeiee 40 x 60 x 14 33, 600 21 21 63 | ef 
LABS ar oto a (00) ee an ey RRR | 40 x 60 x 12 28, 800 18 18 54 6 
HourthiWbore see esse ee Ba Sl ihe iota 40x 60x18 43, 200 27 27 81 | 9 
MRO TANG 2.8 Rae oa creabeelenia ne sides hae seameeeeaee 172, 800 108 108 | 324 36 
a Assuming the cost of eyanid of potash at 25 cents a pound, this would bring the sum for the most 
expensive chemical to $27. Calculating the sulphuric acid at 3 cents a pound (1 pint = 1.84 pounds) 
the cost would be $5.96 or $32.96 as the total cost of the chemicals. 
Table for mills with openings in floors. 
{ 
Wee ca es il (Cloilonte Be “ r Gener- 
Floor. Dimensions. foots Cyanid. Acid. | Water. Figs. 
Sia en a el sae ae ai eel 
Bacerienitsee oe teeta ee ee a ee 40x 60x10 24,000 36 36 | 108 12 
instil OOr sae Se VE anaes Peach oe | 40x 60 x 18 43, 200 | 36 36 | 108 12 
Secondiloonte- cucmte te seen eee cee 40 x 60 x 14 33, 600 24 24 | 72 | 8 
SIGS OOK AeA sa a8 5: 58.2 ee ones | 40x 60x12] 28,800 | 12 | 12) 36 | 4 
0 
MLOUTEN MOOR sas peter be Soiree ete memes | 40 x 60 x 18 43, 200 0 | 0 | 0 | 
This table is intended for use in buildings having large openings, as belt holes, freight elevator shafts, 
and open stairways in the floors, serving to throw the whole building into one large room. 
PREPARING THE MILL OR OTHER BUILDING FOR FUMIGATION. 
After obtaining the ehemicals for generating the gas the building 
should be made as nearly gas-tight as possible, since upon this feature 
alone depends the amount of chemicals to be used. If the building 
could be made approximately air-tight, the amount could be mate- 
rially reduced with consequent saving of expense. 
To compass the object desired, every window must be closed as 
tightly as possible. A good way is to insert plugs of wood on each 
side of the top of the lower sash and between the “strip.” If this 
does not make the aperture between the two window sashes tight 
enough, other substances may be used. Cotton batting of good 
quality is serviceable for inserting into these openings with a case 
knife, care being taken that it is packed tightly and not loosely. <A 
cheap grade of batting can be used for stopping: other apertures. 
Toweling or rags may be substituted, and after being placed under 
running water can be dried and reused. Macerated newspapers 
might serve the purpose, but perhaps the best, because the most 
secure, remedy for general use consists in pasting paper over the 
aperture, uncalendered paper of the quality of cheap wall paper or 
any comparatively porous but not pulpy paper being serviceable. 
Newspapers are apt to be too soft for this purpose. Cracked panes 
should be replaced, or paper may be pasted over the apertures. 
[Cir. 112] 
