76 American Quarterly Microscopical Journal. 



It embraces much that is interesting, and some things are said about 

 the conservative French and German makers which they would do well 

 to think about. We have not room to devote to this subject, but 

 must notice a few points. 



The exhibition of microscopes is a very large one, but they are much 

 scattered about among the " exhibits " of different nations. Among 

 others on the Continent, were exhibited instruments by Nachet, Verick, 

 Hartnack & Prazmowski, Chevalier, Culot, Mirand, Bardou, Lebrun, 

 Seguy, Jaubert. 



Ross & Co. had some splendid stands of large and medium size, 

 some modeled upon the Ross, and others upon the Jackson style. 

 " Among the latter, I remark six models which are copies, pure and 

 simple, of the "Centennial" of Mr. J. Zentmayer; the sub-stage and 

 mirror, connected, revolve about the focal point, and the slow move- 

 ment acts upon the entire tube." Mr. J. H. Dallmeyer, of London, 

 exhibited some stands on the Ross model, and Mr. Crouch was also 

 represented. The display of Mr. Swift is highly spoken of. 



From the United States only four makers are represented, but these 

 are of much importance. 



The Bausch & Lomb Company have a full set of their instruments 

 from the large " professional " down, and a series of objectives, from a 

 2 inch to the ^ immersion. 



Mr. Zentmayer only sent a single stand, and this was his " Centen- 

 nial." Beside this is a box containing " 26 magnificent preparations," 

 by Mr. Charles Zentmayer, mostly double stained. 



Chas. A. Spencer, and Sons of Geneva, have a number of objectives 

 on exhibition, among which is a ^\^ duplex immersion. These will be 

 examined in future. 



" S. Plossel, Vienna, * * * exhibits no micrscopes ; it appears that 

 this is for prudential reasons." 



Mr. J. Rosenthal, Vienna, shows some precisely like Hartnack's. 



There are many other exhibitors, but we must pass them by, — all 

 but the last one. There is a small stand in the Japanese department 

 which might be English, or it might be American, but it has an inscrip- 

 tion which, being translated by the polite native exhibitor, who " speaks 

 French better than an Englishman, and English better than a French- 

 man," evidently referred to the name of the maker in Tokio. 



On the Gold Method, and the Termination of the Nerves 

 IN the "Muscles Lisses' — L. Ranvier. — From Comptes Rendus. 



Crvptogamic Botany. — Programme of the course of M. Leon 

 Marchand, at 1' Ecole Superieur de Pharmacie de Paris. 



A New Field of Study for the Microscopist. — W. Saville 

 Kent. — From the Popular Science Review, April, 1878. — To be con- 

 tinued. 



On the Measurement of the Angles of Microscopic Crys- 



