924 EXPERIMENT STATION RECORD. 



Systematic bacteriology, ElCHLOFF {Milch Ztg., 26 (1897), Nos. 51, pp. 809, 810; 

 52, pp. 828-830; 27 (1S9S), No. 1, pp. 7,8). 



A study of the pathogenic bacteria of Cette oysters, A. Sabatier, A. Ducamp, 

 and J. M. Petit (Compt. Rend. Acad. Sci. Paris, 125 (1897), No. 19, pp. GS5-689). 



Diastatic fungi and their utilization, J. Takamine (Amer. Jour. Pharm., 70 (1898), 

 No. S, pp. 187-141, fi&! 2). 



A simple and accurate method of testing diastatic substances, J. Takamine 

 (Amer. -lour. Pharm., 70 (189S), No. 3, pp. 141-143). 



Some of the properties of the oxydase of wines, A. Botjffard (Ann. Ecole Sat. 

 Agr. Montpellier, 9(1895-'96), pp. 213-217). 



Recent researches on the oxydases, G. Bertrand (Ann. Agron., 23 (1S97), No. 

 9, pp. 385-399). 



The effect of heating on diastatic ferments, A. Puglie.se {Arch. Physiol. 

 [Pfluger], 69, p. 115; ah*, in Chem. Ztg., 22 (1SDS), No. 9, Bepert., p. 21). 



The biology of Bacillus baccarinii, L. Macchiati (Bui. Soc. Pol. ItaL, 1SD7, 

 pp. 156-163; ah*, in Ztschr. Pflanzenkrank., 7 (1S97), No. 6, pp. 354, 355).— The life his- 

 tory of Bacillus baccarinii, the cause of the "mal nero" of grapes is given. 



Contribution to the question of the differentiation of Bacillus aerogenes and 

 Bacillus coli communis, J. C. T. Sheffei: (Arch. Ifi/ff., 30 (1897), No. 1, pp. !'.>l-303, 

 j\ ( j S- 2). — As shown hy cultural means and agglutination phenomena these hacilli are 

 distinct. 



The effect of the so-called monochromic light on bacterial development, Peck 

 and Shultz (Ztschr. Hyg. u. Infektionskrank., 23 i 1897), p. 490; abs. in Centbl. Bdkt. 

 u. Par.. ..'. .Hit.. 5 (1897), No. 21-22, p. <i03). — Experiments were made with Landolt's 

 color screen to determine the effect of its light on bacteria. Comparisons were made 

 with diffused light and direct light. The monochromic light was found to be with- 

 out effect on the growth of the bacteria. Rontgeu rays were also investigated and 

 found to be without effect on bacteria. 



Agar as a medium for the bacteriological examination of water, F. Hess 

 (Centbl. Bali. n. Par., 1. AM., 21 (1S97), No. 24-25, pp. 932-937).— Agar in certain 

 respects it is claimed is superior to gelatin for the bacteriological examination of 

 water and is recommended because it does not liquefy. The medium must contain 

 1 per cent of agar and the water in the bath in which the agar tubes are placed must 

 be heated to 38 or 40 C. before much water is added to it. Such an amount of 

 water is used as will produce about 200 colonies per plate. To avoid mistakes at 

 least 2 control plates should be made. The plates are to be turned face downward, 

 since in this position they are less likely to dry. 



ZOOLOGY. 



A revision of the North American bats of the family Vesper- 

 tilionidce, Gr. S. Miller (V. 8. Dept. Ayr., Division of Biological Sur- 

 vey, North American Fauna No. 13, pp. 13:~>. pis. .7, Jigs. 40). — This is a 

 purely technical monograph on the North American Vespertilionida'. 

 After some general questions, such as changes in color of specimens 

 preserved in alcohol, sexual variation, age variation, geographical vari- 

 ation, geographical distribution, migration, measurements, and illustra- 

 tions are discussed, a lengthy review of the nomenclature of the subject 

 is given, followed by a list of North American bats, comprising lb" 

 species and subspecies recognized as occurring north of Panama and 

 in the West Indies. A detailed systematic description of the various 

 species is given. These fall under the following genera, the numbers 



