1893.] THE MICROSCOPE. 93 



THE MICROSCOPE. 



New Series, 1893. 



For Naturalists, Physicians, and Druggists, and Designed to Popularize 



Microscopy. 



Published monthly. Price $/.oo per annum. Subscriptions should end 

 ■with the year. The old series, consisting of 12 volumes {1881-1892), ended 

 ivith December, 1892. Sets of the old series ca?inot be furnished. All 

 correspondence, exchanges, and books for notice should be addressed to the 

 Microscopical Publishing Co., Washington, D. C, U. S. A. 



CHARLES W. SMILEY, A. M., EDITOR. 



EDITORIAL. 



Flies and the Cholera. — It has been found that flies con- 

 vey contagion. An investigator has fed them on broth in- 

 fected with cholera dejecta, and found that the flies emitted 

 foecal matter loaded with active cholera microbes. Also, that 

 for three days after their diet had been changed to sterilized 

 broth, the cholera microbes continued to be ejected. It is not 

 safe to permit flies in kitchens or in dining rooms. Inasmuch 

 as flies are much more abundant in Washington than in Paris, 

 it is probable that the cholera, once here, will make far greater 

 ravages than in Paris. 



The Society Prizes. — We desire to call attention to the list 

 of prizes enumerated on a preceding page. Should it be 

 found that this year does not furnish sufficient time for good 

 results, we presume the offer will be renewed for another year. 



All photographs and mounted slides for which prizes are 

 given, are to become the property of the society. The object 

 of these prizes is to stimulate and encourage original investi- 

 gation, by the aid of the microscope, in the biology of North 

 America ; and while the competition is open to all, it is es- 

 pecially commended to advanced students in biology, in such 

 of our universities and colleges as furnish opportunity for 

 suitable work. If additional information is desired it may be 

 obtained of the committee on prizos. 



