292 THE AMERICAN MONTHLY. [December. 



affair promises to be a very brilbant event, which will enable the 

 world to see what the microscopists of St. Louis are doing to- 

 wards the advancement of this science. 



Microscope Club, Lincoln, Nebr. — Roscoe Pound, Sec'y. 



October 25, i8g2. — The principal object of interest was an ex- 

 hibit by Mr. Dales. He had experienced considerable difficulty 

 in obtaining optical blue glass discs for modifying the light. All 

 glass which he had obtained in this country was blue on one side 

 only, and did not answer the purpose. As a substitute he painted 

 a piece of mica on one side ultramarine blue and pounced it be- 

 fore dry. This placed between the light and the instrument 

 served very well. 



NEW PUBLICATIONS. 



Illustrated Catalogue of Microscopes. J. W. Qiieen & Co., 

 Philadelphia. 75th edition. 



The microscopist that would, if he could, have all the optical 

 luxuries offered in the makers' seductive lists will take pleasure 

 in reading this new edition of a well-known catalogue. The mere 

 reading is a satisfaction to the microscopist as the reading of a 

 publisher's catalogue is a satisfaction to the lover of books, al- 

 though he may not be able to buy a tithe of all the wares so delight- 

 fully displayed to tempt him. QLieen'smew list has been in part 

 rewritten and rearranged, and has received a w^elcome addition in 

 the form of an index. It is dated from the firm's new quarters, at 

 loio Chestnut street, where they have now gone, as the old place 

 has for some time been too limited for their business. The pam- 

 phlet is a good thing to have within reach, and can be obtained 

 for the asking. 



Annual Address of the Presidefit^ Mr. Edgar Richards., 

 before the Chemical Society of Washington. Some Food Sub- 

 stitutes and Adulterants. (Reprint.) 



Recherches sur les noyaux de Vurostyla grandis et de I'uros- 

 tyla intermedia, par R. S. Bergh, de Copenhague. (Reprint.) 



Of the Teeth. Henle. Translated for the Odontographic 

 Journal. (Reprint.) 



