The Microscope. 319 



Mr. S. W. Ridley has recently described the fourth species of 

 fresh -water polyzoon, Lophoptis lendenfeldi, found in Australia. 

 This was found near Sydey, N.S.W. 



At a recent meeting of the Philadelphia Academy of Sciences, 

 Professor Ryder called attention to the existence of pathological 

 growths in the lower animals, and described a lobulated tumor from 

 the heart of an oyster; a mass of organic tissue formed in the fore 

 part of a shad's alimentary canal; and the degeneration of the 

 Wolffian bodies of a goldfish. — American Naturalist. 



Dr. G. M. Sternberg has been designated "co-laborer" in this 

 country of the Centralblatt far Bacteriologie und Parazitenkunde, 

 and requests authors of papers on bacteriology, which contain 

 original research, to send to him diiplicate copies, which he will for- 

 ward to the editors of the Journal. Address Dr. Sternberg, 

 John Hopldns University, Baltimore, Md. 



BOOK REVIEWS. 



Muscular Tissue, by Simon H. Gage. Reprint from Buck's Reference Hand- 

 book of Medical Sciences. 



This is the clearest and most complete description of muscular 

 tissue with which we have met. We notice that most of the cuts 

 illustrating the article were drawn by Mrs. Gage. 



Bulletin op the Calipoknia Academy of Sciences, Vol. 2, No. 7; June, 

 1887. 



Contains besides other valuable papers a list of the desmids of 

 the Pacific coast, identified by the Rev. Francis Wolle. 



Plant Analysis as an Applied Science, by Helen C DeS. Abbott; reprint. 



A valuable contribution on an interesting and important subject. 



Wide Awake, September: D. Lothrop & Co., Boston. 



On the Use of the Amplifier, by Geo. W. Rafter. Reprint. 



Cyclic Albuminuria, by William Buckingham Canfield. Reprint. 



Intubation op the Larynx, collected reprints from the Medical Record. 



Proceedings op the American Forestry Congress, September, 1885. 



Alatypes or Stengtypography, a system of condensed printing, by Henry 

 D. Brown. 



The Inconsistency op ouu Code op Dental Ethics, by Dr. C. H. Land, 

 Detroit, Mich. 



