201 



Serology, and Infection. Immunology- is not considered in the text. 

 A total of ninety-two experiments are covered and thirty-three of 

 these are devoted to the physiology of bacteria where the major 

 emphasis belongs. The directions are clear, concise, and free from 

 extraneous material, all of which tends to develop sound technique. 



The section on serology is especially well executed for begin- 

 ners. The four experiments listed deal with the preparation of an 

 antigen, the production of antibodies, electrolytes and agglutina- 

 tion. Proteus vulgaris is the organism used in the experiments and 

 the rabbit is used to stimulate agglutinin production. 



The experiments used in the section of applied bacteriologv' 

 covers various phases of water, milk and its pasteurization, food 

 spoilage, acetic acid, soil counts, and bacteria in root nodules. Each 

 section of the book lists a series of questions pertaining to that 

 particular topic, which require thought and analysis. The appen- 

 dix tabulates miscellaneous information keeping the text free of 

 irrelevant information. ._ ^ ^ 



U M. ]. BOXISTEEL 



FoRDHAM University. 



FIELD TRIPS OF THE CLUB 



Trips of May 2-1—25 (1941) to the Watchuxg Mountains 



Sixty-six members and guests were present on these two trips, 

 the first to Washington Valley, near Watchung, and the second to 

 Seeley's Notch, near Scotch Plains, N. J. 



In previous notes in Torreya on the flora of this area^ 603 

 species, varieties, and forms have been recorded by their scientific 

 names, in addition to many others listed less formally by only their 

 common names. To conserve space and avoid needless repetition 

 in the following reports species previously listed by their scientific 

 names will be referred to only by their common names, while species 

 or varieties not previously listed formally will be referred to once 

 by their scientific names and thereafter only b}' their common 



^ Torreya 31 : 29-36 (1931), 36: 57-61 and 88-93 (1936). 38: 10-11. 103-105 

 and 157-158 (1938), 39:143-145 (1939), 40:24-25 and 177-179 (1940), and 

 41:23-25 (1941). 



