The Microscope. 61 



and repeated bleeding from the lar3mx produces anseraia." Be- 

 fore anaemia could be produced b}^ bleeding from the larynx it 

 is likely that something less agreeable would be suflered, but 

 how even a leech in the pharnyx could produce hemorrhage from 

 the larynx is not explained. On page 25, speaking of Algse as 

 vegetable constituents of water, he says : " Thus the Flagillata 

 (sic) are generally found in water containing decaying infusions 

 of vegetable and animal matter, and the}^ have been detected in 

 the dejections of cholera and typhoid fever patients." This 

 assertion conveys a wrong impression, and is at best open to 

 question. " Gladophora and Vaucheria are generall}^ found only 

 in saline waters, and it is doubtful if the marine forms of these 

 Algae can live in water containing no sodium chloride." About 

 the truth of the last phrase there is not a particle of doubt, 

 while there is much in connection with the first. On page 32 the 

 author makes the astonishing assertion that ''All true Infusoria 

 are covered with cilia, b}^ means of which the}^ glide through 

 the water." Of the three great classes of Infusoria the mem- 

 bers of but one are ciliated. 



But while the author is weak in his microscopical accomplish- 

 ments, and while the misstatements are not numerous and may 

 be considered as only minor blemishes, the book is to be com- 

 mended to the class of readers for which it is designed. It con- 

 tains much vital matter which should be familiar to every en- 

 lightened man. The presence of an index and the absence of 

 the advertisement from the back of the page of contents would 

 have been improvements, which the publishers should have 

 thought of. 



Microscopical diagnosis or tuberculosis, by Dr. Paul Faquin. 

 Oblong 16mo., pp. 48. Battle Creek, Mich. : Little Blue Book 

 Co. Price, 55 cents. It is a common occurrence for The 

 Microscope to receive requests for help in acquiring the skill 

 needed to prepare the bacillus tuberculosis for microscopical 

 study. The ph3'sicians that make the request are usually busy 

 country practitioners that feel that the}^ should be able to 

 demonstrate the bacilli, and desire instructions to that end. 

 Until this praiseworthy little pamphlet appeared it was only 

 possible to refer such inquirers to the current literature of the 

 day. Hereafter it will be a pleasure to refer them to Dr. Paquin's 



