BOTANY AS APPLIED TO VETERINARY SCIENCE. 497 
stellated and penniform crystals of the phosphate of lime, and 
tribasic phosphate of ammonia and magnesia, with here and there 
a spherule of carbonate of tune. 
The soft interior was but little acted on by the acid, even 
at the boiling point, except that its colour was heightened by 
it. It immediately dissolved in a solution of potass, and 
tincture of galls furnished a copious precipitate of a pale- 
brown colour. 
The microscope showed this matter to be constituted of 
epithelial scales and mucous corpuscles, some of which were 
nucleated. 
By far the greater number of the urinary calculi found in 
the horse consist of the carbonate of lime and mucus. In 
this we have the triple phosphate, constituting what is 
commonly designated a fusible calculus . 
Mr. Sharman is, doubtless, right in referring its origin to 
the artificial food of the colt, since the organism does not 
form a principle, and from the milk and the bran of flour 
were the phosphates derived. It is also, as remarked by 
him, unusual to meet with a concretion of this kind in so 
young an animal.] 
BOTANY AS APPLIED TO VETERINARY SCIENCE. 
By W. Watson, M.R.C.V.S., Rugby. 
(.<Continued from page 388.) 
It will be thus seen that all plants are considered under 
certain fixed and definite divisions, and that, when these 
are fully understood, little difficulty will be found in recog¬ 
nising the particular department to which each plant belongs. 
When once an insight has been obtained, the endless variety 
of beautiful objects for investigation, which are found so 
abundantly scattered around our every way-side walk, will 
prove an increasing source of interest, and gradually lead 
step by step to a more extended knowledge of this attractive 
and important science. In answer to inquiries as to the best 
works to commence the study of botany from, I would 
suggest c Lindley’s School Botany* and ‘ Balfour’s Manual* 
while the more advanced student will find £ Hooker and 
Arnott’s British Flora/ or £ Babington’s Manual of British 
Botany/ of the greatest utility. I would also recommend 
the preservation of plants by drying them, as a means of posses¬ 
sing some very interesting specimens for future reference. 
