132 REPORT OF THE CHEMIST OF THE 
414 cents a pound. It can be purchased at drug stores for about 
6 cents a pound. 
We have been at considerable trouble to learn where fish-oil 
can be purchased. It can be furnished in barrel lots by the 
following parties: 
Nehemiah B. Cook, 148 Front Street, New York City. 
Swan & Finch Co., 151 Maiden Lane, New York City. 
Refined fish-oil can be purchased in barrel quantities at 29 cents” 
a gallon f. 0. b. Crude fish-oil can be purchased under the same 
conditions at 25 cents a gallon and answers the purposes very 
satisfactorily. 
From these data, we can estimate the cost of materials used 
in making soap according to the formula given, making some 
allowance for cost of shipping materials. 
6 pounds caustic soda at 414 cents a pound............ . $0.27 
22 pounds (about 3 gallons) fish-oil at 29 cents a gallon.. 0.87 
Total cost of materials used in making 40 pounds of soap. 1.14 
Cost of one pound Of SOAP! cece eine oun |e iss wecinpe | eee Cente 
Commercial whale-oil soap costs at retail in small quantities 
10 cents a pound; in larger quantities, six cents a pound. In 
barrel-lots, amounting to 350 to 400 pounds, whale-oil soap can 
be purchased in New York city at 4144 cents a pound, and fish- 
oil soap at 31% cents a pound. 
It would, therefore, appear that some saving may be effected 
in the home-manufacture of fish-oil soap for spraying purposes. 
Even if no saving could be made by home-manufacture, an article 
of greater uniformity and reliability could be secured and this 
would generally result in marked economy in comparison with 
using commercial soaps of uncertain and very variable com- 
position. 
