29 
properly injected, should be thrown into the freezing mixture, and 
sections rapidly cut and washed off the razor into cold water, in 
which they may remain some hours without harm, if thoroughly 
cold. When sections of all the good organs have been so cut, the 
best are picked out and dried on the centre of glass slides, and 
mounted in balsam. The reason that I recommended freezing and 
cutting the section at once is, that if hardened in: spirit, the only 
alternative with carmine injections, the gelatine in the vessels con- 
tracts so much as frequently to mar the beauty of the specimen ; 
while by drying fresh sections little if any of the calibre of the 
vessel is lost. But there is a better mode of preserving injections, 
and that is by first staining them, when the other elements of the 
tissue, as well as the capillaries, are brought into view. It is one 
that I recommend you to adopt, and one that I shall put into prac- 
tice more frequently in future. But I fear that I have already 
exceeded the allotted time, so I must leave further arguments on 
behalf of the animal tissues to the specimens under the microscopes, 
staying only to add one word of apology for them, in that for the 
_ last two or three years I have worked almost entirely at patho- 
logical specimens, and have therefore only a few fairly-mounted 
_ specimens of normal tissues. To these, such as they are, I now 
direct your attention. 
A short discussion ensued, on the termination of which the 
President accorded to Mr. Paul the thanks of the Club for his 
_ valuable paper. 
The Presipent and the following members exhibited micro- 
_ scopes :—H. Ashby, J. S. Johnson, G. Manners, K. McKean, Geo. 
_ Perry. After reading his paper, Mr. Paul gave the mémbers a 
_ practical demonstration in cutting sections of animal tissues. 
sday, June 17th, 1874, about 60 of the members, with their 
- friends, met at the Greyhound Hotel, for a friendly supper, on the 
_ oceasion of presenting the testimonial to the late secretary, Mr. 
- Henry Long. 
Henry Les, Esq., President, was in the chair, and Henry J. 
7 _ Sons, Esq., M.D., in the vice-chair. 
_ After the usual loyal toasts, the Chairman said—About four 
and a-half years ago there appeared in the Croydon papers an 
_ advertisement requesting gentlemen who were desirous of joining’ 
the Croydon Microscopical Club to send their names to Mr. Henry 
’ Long, of 90, High-street, Croydon. Mr. Long having observed 
_ that I was connected with the Royal Microscopical Society, asked 
a 
§ me to give my name, and I promised Mr. Long, as a fellow of that 
