462 The American Naturalist. [May, 
The library of the late Prof. A. Milnes Marshall has been given to 
Owens College, Manchester, by his friends and executors. 
The Sixth Geological Congress will meet in Ziirich from August 20 
to September 2, 1894. 
Dr. Justus Karl Hasskarl], the botanist, who introduced the cultiva- 
tion of Cinchona into Java, died at Cher, Prussia, Jan. 5, 1894. 
Edmond Frémy, Director of the Museum of Natural History at 
Paris, is dead. 
Alexander Theodor von Middendorf, the Arctic explorer, died Jan. 
28, 1894. He was born in St. Petersburg in 1815. 
Dr. K. Zelinka of Graz has been appointed extraordinary professor 
of zoology in the University of Vienna. 
The list of literature in the current volume of the “Zoologischer 
Anzeiger” has been greatly improved, not only by being brought out 
more promptly than heretofore but by the addition of abstracts of a 
few lines stating the substance of the article. It may be that editors 
and publishers were spurred up to this by the announcement of the 
“Zoologisches Centralblatt,” the first number of which bears date 
Feby. 1, 1594. This new publication is designed to furnish abstracts 
of the principal articles at the earliest possible moment. Tt is edited 
by Dr. A. Schuberg of Karlsruhe, with the assistance of Professors 
Biitschli of Heidelberg and Hatschek of Prag. The first number, 
containing 40 pages, is not remarkably strong. 
The San Francisco Microscopical Society extends a cordial invita- 
tion to those interested in microscopy to visit its rooms, 432 Montgom- 
ery St., San Francisco, Cal., and to attend its meetings the first an 
third Wednesday of each month. The officers for 1894-95 are Prof. 
W. E. Ritter, president; W. E. Loy, vice-president; F. E. Crofts, 
recording secretary; G. O. Mitchell, corresponding secretary ; C. C. 
Riedy, treasurer. : 
The following is the list of officers of the Zoological Sociéty of 
Philadelphia: President, Charles Platt; Vice-president, J. Vaughn 
Merrick; Corresponding Secretary, Prof. H. C. Chapman; Treasure", 
William Hacker ; Directors, W. H. Merrick, I. J. Wistar, c. W. 
Trotter, F. S. Fassitt, G. C. Morris, F. W. Lewis, M. D., C. M. 
