520 EXPERIMENT STATION RECORD. 



litmus-milk cultures, and pepton-rosolic acid solution, are described, 

 together with their action in fermentation tubes, chemical relations, and 

 pathogenesis. 



In an appendix 10 species of bacteria associated with diseases of 

 plants are briefly noted, which the author claims are not sufficiently 

 described or are of such a habit as to make their classification by the 

 foregoing scheme impossible. 



The work concludes with an index of the more important literature 

 of species of the genus Bacterium. 



Bacteriological examination of drinking water, F. D. Chester 

 (Delaware Sta. Rpt. 1897, pp. 42-53). — During the past year a consider- 

 able portion of the bacteriologist's time has been taken up with the 

 examination of different samples of drinking water. The different 

 methods of examination are reviewed and the method of Smith 1 is 

 given in some detail. This method consists practically of the follow- 

 ing manipulations: To each of a series of 10 fermentation tubes con- 

 taining 1 per cent glucose bouillon, are added quantities of water 

 varying from 0.1 to 1 cc, and are kept at 37 to 38° C. If after 3 or 4 

 days one or more of the tubes are found to contain from 40 to 00 per 

 cent of gas, and if the reaction of the liquid is strongly acid, the 

 Presence of the colon bacillus is regarded as certain. In the author's 

 experience this method is not wholly accurate, and details are given 

 of several cultures showing that the appearance of the colon bacillus 

 can only be certainly established by isolating the organism and by its 

 cultural characteristics. The claim that the above-described method of 

 treatment gives absolute results the author thinks should be qualified 

 to mean the possible evidence of the presence of this particular germ. 



A simple steam sterilizer, F. G. Novy (Jour. Appl. Micros., 1 (1898), No. 2, p. 83, 



fig-*)- 



An atlas of bacteriology, C. Slater and E. J. Spitta (London : Scientific Press, 

 1898.) 



Laboratory methods in bacteriology: Detection of pathogenic organisms, 

 F. G. Novy (Jour. Appl. Micros., 1 (1898), No. 10, pp. 175-178, figs. 2). 



Laboratory directions for beginners in bacteriology, V. A. Moore (Ithaca, 1898, 

 pp. TI-\-89). 



A practical guide to the bacteriological analysis of pus, blood, saliva, milk, 

 urine, ■water, soil, etc., L. Feltz (Guide pratique pour les analyses dc hacteriologie 

 clinique, pus, sang, cr achat, lait, urine, eau, sol, etc. Paris : J. B. BaUliere, 1898, pp. 

 282, figs. 111). 



Technical mycology : The utilization of micro-organisms in the arts and 

 manufactures, F. Lakar. Transl. by C. I. C. Salter (Philadelphia: J. B. Lippin- 

 cott Co., 1898, Vol. I, pp. IX -\- 405, pi. l,figs. 90). — This valuable contribution is a prac- 

 tical handbook on fermentation and fermentative processes for the use of brewers, 

 distillers, analysts, technical and agricultural chemists, pharmacists, and all inter- 

 ested in the industries dependent on fermentation. The first volume, the only one 

 at hand, treats solely of schyzomycetic fermentation. The immense strides that 

 mycology has made in the arts are seldom appreciated until such a work as the pres- 

 ent volume is carefully examined. 



1 Centbl. Bakt. u. Par., 1, Abt., 18 (1895), p. 494. 



