11 
APPENDIX A. 
MANUFACTURE AND USE OF CARBON BISULPHIDR. 
Theoretically 100 tbs. of sulphur should yield 119 tbs. of carbon 
bisulphide, but after allowing for leakage and loss from imperfect 
condensation, it will be safer to assume that 150 lbs. of sulphur are 
required to produce 100 ths. of CS,. 
Plant and building ; capital cost ne .. $2,000 
Monthly production 600 lbs. 
* Sulphur, 8 ewt. at $12.50 га da ied S100 
Charcoal, 10 ewt. at $1.50 i ie ir 15 
m ete - uo je - „кв 50 
ite on capital 10%, sinking fund 15%  ... 52 
Repairs 
$297 
or, roughly speaking, 50 cents per lb. 
With a consumption of 1,200 ths. per mensem we have— 
Establishment charges ... d ёз. а $132 
Cost of materials... е = Si — 330 
S 
$0.39 per lb., which is a very great ie а than carbon 
bisulphide can possibly be imported for. The of materials, o 
wages, repairs, and capital cost of apparatus have wes ака ай а 
very much Кийме rate than is likely to prevail, an exceedingly low 
condensation factor has been assumed, and a liberal allowance made 
for interest and sinking fund. 
I hee nevertheless, suggest that previous to есй action bug 
taken, the Government should instruct the Crown Agents to refer the 
question to either Professor Tilden, F. = S., Professor of Chemistry, 
Royal College of Science, or else to Profes or T. E. Tho orpe, of Somerset 
House, with the re — that they calc olaa plans for a plant on 
the following sca cale : 
Daily production required  ... le А 70 lbs. 
Working hours per day is i oe 7 
Working days per month  ... is as 20 
Temperature of condensing water ... es 80° F. 
All parts to ue "— accessible, readily replaced and as uncompli- 
cated as possi 
* Present price in London, retail, 16s. per cwt, 
