t899J MICROSCOPICAL JOURJTA.L. 103 



oscopic effect being- greater than that obtained by a divid- 

 ed image from one objective. Messrs. Powell and Lea- 

 land exihibted their high-power binocular prism in con- 

 junction with a 1-20 in. apochromatic objective. A Nelson 

 model, a Mojinie's portable binocular, Wenham'sl>inocular 

 with a high-power objective, a binocular micro-spectro- 

 scope were exhibited, besides various patterns of Stephen- 

 son and Wenham binocular microscopes by Messrs. Chas. 

 Baker, R. and J. Beck, J. Pillischer, Swift and Son, and 

 Watson and Sons. Among the other objects exhibited may 

 be mentioned typical species of foraminifera, selected from 

 various localities, by Mr. A. Earland, which were rare and 

 beautiful ; and mounted specimens of hydrozoa, by Mr. G. 

 E. Harris. 



NEW PUBLICATIONS. 



DieMikroscopischenuntersuchungs-MethodendesAuges. 

 Dr. S. Seligmann, Augenartz in Hamburg. S. Karger, Karl- 

 strasse 15, Berlin. Price, 6 marks. 240 pp. 



For microscopical technique the laboratories of the An- 

 atomical Biological Institute of Berlin are second to none 

 in Germany. A student there. Dr. Seligmann, has com- 

 plied the different methods, which he has met with, and 

 which he has proven to be of value by personal experience 

 in the laboratory. The histological examination of the eye 

 differs materially in technique from that of general his- 

 tology, and the worker in microscopic histology and path- 

 ology of the eye will save much time and valuable material 

 by adhering closely to the instructions of the author. The 

 subject is fully and well covered, the first half of the book 

 being devoted to what may be called general remarks with 

 regard to collecting of material, preparation of bulbus, 

 ways of producing microscopical preparations, etc. The 

 second half is especially given to the specific treatment in 

 technique of various parts of the eye. 



Moore's Bacteriology. — "It would be difficult to find 

 anywhere in the world, in the same number of pages, as 

 many important and useful suggestions." — A Ckitic. 



