1899] MICROSCOPICAL JOURNAL. 65 



do special and original work. John R. Wathen, is Profes- 

 sor of Normal and Pathological Histology and Bacteriology. 



BACTERIOLOGY. 



Malarial Microbe. — Surgeon Ross has proved that mala- 

 ria can be acquired from a mosquito bite. Insects are the 

 media for its propagation. Particular species of malaria 

 microbes accompany particular species of mosquitoes. 

 But, of course, as is known, these parasites must fall into 

 depleted constitutions in order to live and propagate. Cer- 

 tain ascetics get their bodies so purified that they sit quiet- 

 ly and unharmed in the midst of swarms of mosquitoes not 

 one of which ever stings them. 



Cheese Rust. — By this is meant the spots and rings seen 

 in cheeses. It is due to an organism 1-15,000 to 1-25,000 of 

 an inch in length. Connell has isolated and mounted it af- 

 ter staining with aniline in cultures. It stains best with 

 carbol-fuchsin or aniline water, gentian or violet. 



Widal's Test. — The Bacteriological Laboratory of the 

 the city of Denver, Colo., is now making Widal's test for 

 typhoid fever. The fact that an very expert bacteriolo- 

 gist is required to make the test is offset by the ease of 

 transportation of specimens of dried blood, which long re- 

 tain the power of reaction ; and it is greatly to be hoped 

 that further possible improvements in technic may place 

 this most ingenious test upon a firmer practical basis than 

 can at present be claimed for it. 



NEW PUBLICATIONS. 



Bacteriological Methods.— A laboratory manual of 90 

 pages outlining practice for students has been published 

 by Professor Veranus A. Moore of Cornell University pre- 

 sumably for the use of his students. There are 60 lessons 

 but the work is not a text-book on bacteriology. It will be 

 useful to teachers in other colleges who wish to lead stu- 

 dents through carefully arranged experiments whether 



