CATTLE AND HORSE INSURANCE. G63 
most benefit is to be derived from the study of a moderate number 
of diseases, taken indiscriminately. These cases should be .seen 
daily, and notes written down respecting them, in order that the 
details may not only be rivetted in the memory, but also in order 
that they may be referred to in after-life. Lastly, it must ever be 
remembered that a practitioner is destined to rise or fall by his 
knowledge of disease, and that nearly all other branches of medical 
learning are merely adjuvants to enable him to arrive at a true 
knowledge of the phenomena of disease, and of their treatment. 
Among the accessory sciences, there is one to which we must 
more especially direct the attention of students ; viz., chemistry. 
Organic chemistry has made such rapid strides of late, it is evi- 
dently destined to play so large a part in the domains of the heal- 
ing art, that an extensive knowledge of it has become more than 
ever necessary to the medical practitioner. At the same time, 
students must not fall into an extreme, and devote themselves 
entirely to chemistry. Botany, chemistry, natural philosophy, &c., 
are, after all, only accessory sciences, although indispensable ac- 
cessories : the student who loses sight of the object for which he 
studies, and pursues them abstractedly as sciences, becomes not 
a medical man, but a chemist, a botanist, with, generally speaking, 
only a smattering of medical knowledge. 
CATTLE AND HORSE INSURANCE. 
[Continued from page 627.] 
Mr. Daws pursues the subject : 
1st. Upon one or two farms in my district I have ascertained 
that the horses live to 25 years on the average, if well treated. 
2d. About the same as the former. 
3d. Twelve years. 
4th Hunters, if well treated, live to about 12 years ; but after 
they have been used a few seasons they are generally sold for 
other purposes. Stallions kept entirely for procreation live to 
about 20 years. 
5th. Mares, in my opinion, may be classed with the horses. 
6th. Cannot here speak with certainty, the greater part of them 
being consigned to the knackers’ yards. 
7th. Inflamed lungs — catarrhs — inflamed bowels — foot lame- 
nesses and enlargement, or ramollissement or rupture of the liver 
in old fat horses. 
