94 ANIMAL RESOURCES OF THE UNITED STATES. 
30. CHEMICAL PRODUCTS, &c.—Continued. 
a. Derived from mammals: 
(Koumiss, a fermented liquor, prepared from mare’s and 
cow’s milk, and employed in medicine.) 
Phosphorus, prepared from bones, with specimens of inatches, 
vermin poisons, and other products. 
Vaccine lymph, derived from cows. 
Ammonia, prepared from bones and horn. 
Sal ammoniac, prepared from bones and dung. 
Prussiates, prepared from hoof, horn, and leather waste, dried 
blood, hair, and wool, with specimens of blue cyanide of 
potassium. 
Lime from bones and bone phosphates. See also under 32. 
Punk and tinder, made from droppings of camel and bison. 
Animal charcoal, used as a decolorizer. 
b. Derived from birds: 
Albumen of eggs, used in photography, in clarifying liquors, 
by physicians as emollients and antidotes, and by apothe- 
caries in suspending oils and other liquids in water. 
Egg-shells, employed as an antacid. 
c. Derived from reptiles: 
Crotalin of rattlesnake and copperhead. 
(Scincus officinalis of Egypt, used by European practitioners 
as sudorific and stimulant.) 
d. Derived from fishes : 
Propylamine, made from fish-brine. 
(Intestines of grayling, used by Laplanders as a substitute 
for rennet.) . 
Skins of eels, used by negroes for rheumatism. 
e. Derived from insects : 
Vesicatory preparations from American beetles, Cantharis 
cinerea and C. vittata. 
(Vesicatory preparations derived from foreign beetles, can- 
tharides or Spanish flies, (Cantharis vesicatoria,) and other 
species, and substitutes Mylabris cichorii, Cercoma Schoefferi, 
Meloe, sp. var., &¢.) 
Vesicvatory preparations from American spiders, such as 
Tegenaria medicinalis. 
Gall-nuts, used in medicine. (See under 29.) 
