194 PREPARATION AND MOUNTING 
I used the common syringe, and filled the leg with the 
liquid. We then placed it in cold water, and allowed it to. 
remain until the next morning. 
The first work was to remove a piece of the skin, and 
take sections of it by the aid of a Valentin’s knife. The 
arteries were shown beautifully; but the most attractive 
part was where the growth of the hair was laid open before 
us. Each hair exactly resembled a common onion, whilst 
every bulb was surrounded by a perfect network of arteries; 
and where any bulb had been torn out by accident, there 
was left a minute bird’s-nest of them, clearly showing how 
they had been intertwined around some lost friend. Dif- 
ferent sections of the muscular portions showed every phase 
of arterial distribution, with some exquisitely minute vessels 
in parts. I then took an artery and cut cross sections, in 
which the carmine portions were as closely interwoven as 
wickerwork. I also, with a pair of scissors, laid open a 
length of the artery, and mounted it, together with a cross 
section. In the same way I used the veins. Many of the 
nerves we took out, and, after cleaning carefully with knives 
and small brushes where necessary, mounted them with 
the attendant arteries around them. But as we approached 
the hoof, double interest was given us. The skin with its hairs 
jast above the hoof plainly showed the change taking place, 
and sections of the hoof gave beautiful specimens of where 
circulation was gradually stayed by the growth of harder 
substance. Here, too, we reached the laminz, or thin 
plates (somewhat resembling the gills of certain fishes), 
the exact use of which, we have no space to discuss—and 
these were readily removed by the aid of scissors and 
knife. In these the vessels are minutely and exquisitely 
shown. 
These are a few of the beauties which this injection 
afforded me. My friend Mr. Hepworth and I worked to- 
gether at this subject for a week or two, and part of the 
knowledge which he gained from it was communicated to 
