576 
THE PRINCIPLES OF BOTANY. 
the injury, but ordered fomentations, mashes, &c. On the 
morning of Tuesday I discovered fracture of the ischium ; the 
horse was cheerful, fed well, and suffered less pain. On Wed¬ 
nesday, he walked out of the box and was put in slings ; 
fomentations were continued. On Thursday a slight blister 
was applied. 
In about three weeks from the time he was put in the box, he 
walked very fairly, but could not move sideways, so that I sus¬ 
pected a lower fracture. The horse got down the next day, and 
appeared so helpless that I had it killed. On post-mortem I 
found two pieces of the tuberosity of the ischium broken off, 
and the remainder of the ischium to the cotyloid cavity 
completely crushed, and other parts of the bone broken into 
small fragments. 
[It was evident from an inspection of the fractured bone 
that some very powerful crushing force had been employed to 
cause the injury; most likely the animal fell heavily on that 
side. The remarkable circumstance is, that with such an 
extensive fracture the horse did not from the first show more 
decided symptoms.— Eds.] 
THE PRINCIPLES OF BOTANY. 
By Professor James Buckman, F.L.S., F.G.S., &3. 
(Con tinned from p. 507.) 
We come now to consider the subject of the classification 
of plants—a matter of no little importance to the student of 
the vegetable kingdom, when it is considered that the number 
of named species up to the present time can scarcely fall 
short of 100,000, and fresh forms are daily being: added to 
the list. 
To reduce this mass of material to order, or, indeed, to 
adopt a system of classification which shall be readily under¬ 
stood, has presented, and will ever present, no slight difficul¬ 
ties, for though we may all subscribe to the dictum of the 
poet, that 
“ Order is Heaven’s first law,”—P ope, 
yet we shall find it difficult to comprehend that order which 
the Great Architect ot the universe has impressed upon all 
his Morks, simply because we are ever looking for grand lines 
of demarcation, so that our arrangements consist of so many 
lists on paper, which we divide and subdivide for our con- 
