on the Urine of the Camel . 38 1 
lime and urea : it contains also carbonat, sulphat, and muriat 
of soda, and there appears to be a small quantity of potash, 
which is probably united to muriatic acid. I could not discover 
any benzoic acid. 
“ It is worthy of remark that the urine of the horse and 
ass are both destitute of ammonia. " 
Explanation of the Plates. 
Plate XV. 
Represents a longitudinal section of the first stomach of the 
bullock, showing its cavity, which is made up of two com- 
partments, separated from each other by two strong transverse 
ridges, composed of a mixture of ligamentous and muscular 
fibres: also the opening into the second stomach, and a portion 
of its cavity : the orifice leading into the third stomach, and 
the canal through which the food is thrown up from the second 
stomach into the mouth, and afterwards conveyed into the 
third stomach. 
a , The oesophagus terminating in the first stomach. 
bbbb, The cavity of the first stomach. 
cc. The two ridges dividing it into two compartments. 
del , The mouth of the second stomach. 
e, The orifice leading to the third stomach. 
ff, Two muscular bands, which have their origin from the 
coats of the first stomach and terminate in the orifice of the 
third, forming a canal, along which the food is conveyed 
from the second stomach, to the mouth, and from the mouth 
to the third stomach. 
