60 . BIBLIOGRAPHY. 



since. At its first conversazione, held at the house of Mr. Joseph T. 

 Eyerson, about thirty instruments were exhibited, estimated to have 

 cost, in connection with their appui-tenances, about S7000. On the 

 date of its third conversazione, more than 100 instruments were exhi- 

 bited, representing a value of S30,000, Such has been the growth of 

 om' Microscopical Society, of which it may be said that it stands the 

 first of its kind in the United States. 



While the slides were being changed on the instruments. Prof. 

 H. Peabody performed interesting electrical experiments, and Prof. 

 Delafontaine and Mr. Boerlin showed several beautiful Geissler tubes 

 lit by the electrical current. 



The Tunbridge Wells Microscopical Society.* 



The monthly meetings of this Society have been held regularly 

 under the able presidency of Dr. Deakin. 



The subjects for discussion have been Sections, Vegetable and 

 Animal, the careful consideration of which has occupied the members 

 for several meetings, and elicited much useful information. 



The next meeting will take place on October 3. 



BIBLIOGEAPHY. 



Die Praxis der Naturgeschichte. Von P. L. Martin. Weimar. 

 Voigt. 



Martini und Chemnitz Systematisches Conchylien-cabinet, In 

 Verbindg. m. Dr. Phillippi, Dr. Pfeiffer, Dr. Dunker, und Dr. E. 

 Eomer, neu. hrsg. und vervoUstandigt von Dr. H. Kiister. Nurnberg. 

 Bauer & Easpe. 



Archiv fiir Mikroskopische Anatomic herausgegeben von Max 

 Schultze. 6 Band, 4 Heft, mit 8 Taf. Bonn. Cohen & Sohn. 



Untersuchungen ueber Bau und Entwicklung der Arthropoden. 

 Von Dr. Ant. Dohrn. 2 Heft. Leipzig. Engelmann. 



Ueber d. WLrkung v. Borsaure auf frische Ganglienzellen [Aus 

 dem physiolog. Institute der Wiener UniversitatJ. Von Ernst 

 Fleischl. Wien. Ceroids Sohn. 



Physiologish-anatomische Untersuchungen ueber den Uterus. 

 Von Dr. Carl Friedlander. Leipzig. Simmel & Co. 



Die Aehnlichkeit im Baue der aiisseren weiblichen Geschlechtsor- 

 gane bie den Locustiden und Akridiern dargestellt auf Grund ihrer 

 Entwickelungsgeschichte. Dr. L. Graben. Wien. Ceroids Sohn. 



* From the Eev. Mr. Whitelock. 



