250 J. AV. GROVES. 



Iniesl.ine, small — continued. 

 Mucous membrane. 



„ „ vert, sect. 



„ „ Corp. cells of, 117. 



Blood-vessels of, 106, 107, 108, 117, 109, 120.' 

 Nerves of. 



Then each 6f these components of the small intestine is 

 entered again under its approximate heading, thus : — 



Under "M"— 



Muscle, involuntary of small intestine, vide intestine. 

 Muscularis mucosa of small intestine, vide intestine. 

 Mucous membrane of small intestine, vide intestine. 



Under " V "— 



Villi of small intestine, vide intestine. 



Under " L "— 



Lymph-follicles of small intestine, vide intestine, 



and so on. 



It will be observed that some of the numbers are marked 

 with a star (thus, *247). This denotes that those prepara- 

 tions show the part mentioned under the heading specially 

 well, though the others also show it more or less perfectly. 

 Thus— Peyer's glands, epithelial cap., 147, *209. Of these 

 No. 209 is the best. Again, Villi, muscle in, *24T, 149. Of 

 these *247 shows it most perfectly. 



The other divisions of my collection are treated in a pre- 

 cisely similar manner, and from what I have now said, it will 

 be seen that, in a small collection, no space need be wasted, 

 because the cabinets are gradually filled up, and when others 

 become necessary the numbers simply follow on consecu- 

 tively from the last slide in the cabinet just filled ; while, at 

 the same time, it will be evident that for small or large 

 collections, and whether the slides contained in them be 

 arranged systematically or not, there will not be, in either 

 case, the sHghtest difficulty in finding any given slide in a 

 moment. 



I may add that it will be found handy to have a simple 

 numerical list of slides, as well as that arranged alphabetically, 

 because then if a preparation be mislaid, it will be easier to 

 find out what it was, and thus to replace it, if the clue thus 

 given do not enable it to be traced and found again. 



In conclusion, let me add that it will be found to save time, 

 and, what is of more consequence, the preparations will be 

 preserved with less risk of injury if kept in cabinets which 

 will take them horizontally, instead of " on edge." This 

 remark applies with special force to all specimens put up in 

 a fluid medium, no matter of what kind. 



