134 Tue Microscope. 
A Seven YeEArs’ Remepy.—Just here we are reminded of 
the Medical school of the Imperial University of Japan. This 
school, “‘ which numbers its centuries by two figures,” requires 
four years of medical study, with three years of preparatory 
training; or in all, seven years of college work. And yet last 
year there were nine hundred and seventy-two students in at- 
tendance. 
SLIDE OF ARRANGED D1AtToms.—The Junior Editor is in re- 
ceipt of another slide of these beautifully arranged diatoms, as 
prepared by Mr. Rinnbéck, of Wein, Austria. We are very 
sorry to read in his last letter that his physician has ordered 
him to do no microscopical work for a whole year, and he then 
adds, “‘ but I fear that it is forever.” He says he has just sent 
to the San Francisco Microscopical Society the most difficult 
slide of arranged diatoms he ever made. All our readers will 
hope that the health of this eminent man will be fully restored, 
and even he, himself, most happily surprised. 
Toot Srections.—We are in receipt of two slides from Dr. 
W.C. Brittan, of Detroit, that are marvels of beauty. One 
represents the injected pulp of an adult tooth. The anas- 
tomosing of the vessels, their vast number, and their beautiful 
arrangement, all excel any diagrammatic representation we 
have ever seen. The other slide represents the longitudinal sec- 
tion of a deciduous molar, with the germ of the second tooth. 
The preparation is injected and is from a dog two weeks old. 
Tam or Movusre.—Dr. J. K. Stockwell, of Oswego, sends us 
this slide. By some decalcifying process the bones were soft- 
ened so that complete transverse sections were made. The 
stainings employed differentiate the various structures to an 
unusual degree. The ossifying of the cartilage is finely shown. 
This is also a beautiful as well as an instructive slide. 
Dratoms.—W. H. Curtis, of Haverhill, Mass., sends us a 
slide of pleurostgma. The material is nicely cleaned and ex- 
quisitely mounted. 
InsEcteD Lunc.—This preparation from the Guinea pig was 
prepared by C. Blasdale, Jericho, N. Y., and is positive proof 
that he certainly succeeded in getting a fine injection. 
Micro-PHOTOGRAPH.—The “ Stowell Microscopical Club,” of 
Albion, Mich., sends us this photograph of their sixteen mem- 
