libS EXPERIMENT STATION RECORD. 



ing considerable statistical matter and results of experiments at the New Jersey 

 Station. 



Report of the dairy institute at Proskau, 1904 (Ber. Tat. Miichw. Inst. Pros- 

 kau, 1904, pp. ■-'..). — This is a general review of the work of the institute during the 

 year ended April 1, 1904. 



Annual reports of the dairymen's associations of the Province of Ontario, 

 1903 i Ontario Dairymen's Assoes. Jlj>ts. 190S,pp. 190). — Among the papers presented 

 at the meetings of the associations of Western and Eastern Ontario, and published 

 here in full, are the following: Chemical Notes for 1903, by W. 1'. Gamble; Cleanli- 

 ness and Sanitary Conditions of Factories, by W. G. Medd; Bacteriological Notes on 

 Butter, by F. C. Harrison; The Use of Acidimeter, by F. Herns; Judging Cheese, by 

 R. M. Ballantyne; Defects of Canadian Butter, by I'. \V. McLagan; The Best Methods 

 of Caring for, Delivering, and Determining the Value of Cream, by J. A. McFeeters; 

 Managing a Herd for Profit, by Adda F. Howie; The Cooling of I uring Rooms, by 

 W. A. Bothwell; Ripening Cream, Churning, and Packing Creamery Butter, by 

 J. C. Bell; The Requirements of the Export Butter Trade, by A. Smith; Experi- 

 ments in Ripening Cheese at Various Temperatures, by H. II. Dean; The Selection, 

 Care, and Feed of the Dairy Cow, by H. Glendinning; Hints on Ventilation, by 

 J. A. Ruddick; Footprints in the March of Modern Dairying, by T. McGillicuddy; 

 Dairy Instruction at the Agricultural College, by II. H. Dean, and The Transporta- 

 tion of Dairy Products, by J. A. Ruddick. Other articles not included in the above 

 list are noted above. 



VETERINARY SCIENCE AND PRACTICE. 



Alexins and bactericidal substances of normal serum, V. Pirenne (Centbl. 



Bald. u. Par., 1. Abt., <>ri<j., 36 (1904), Nos. 2, pp. 256-266; 3, j'j>. 388-397).— The 

 present investigations were undertaken for the purpose of determining the bacteri- 

 cidal action of rat serum toward anthrax and other organisms, and also whether such 

 action was due to one specific substance or to several causes. It was found that 

 Bacillus mesentericus, J!, subtilis, B. megatherium, and B. mycoides were as quickly 

 destroyed by rat serum as was B. antliracis. 



Notes are also given on the effect of heating rat serum, agglutination caused by 

 the serum, filtration, and neutralization of the serum. Normal rat serum possesses, 

 even after heating to 56° C, a bactericidal action of bacilli of the anthrax group. 

 This action is apparently not due to alexins, immune bodies, or agglutinins. In 

 general, however, the bactericidal power of sera is of special importance when it 

 results from the combined action of an alexin and an immune body. 



Bacterial hemolysins and antihemolysins, R. KRAUsand B. Lipschutz (Ztschr. 

 Hyg. n. Tnfectionskrank., .'/<! (1904), No. 1, pp. 49-67). — The authors carried on exper- 

 iments with tetanolysin, staphylolysin, and vibriolysin. The amount of lysin 

 required to dissolve 5 cc. defibrinated rabbit's blood in 0.85 per cent salt solution 

 within 4 hours, at a temperature of 37° C, was taken as the hemolytic dose. 



By adding an appropriate quantity of antihemolysin it was found possible to pro- 

 tect red blood corpuscles against the action of the hemolysin. The greater the toxic- 

 ity of the lysin, the more rapid its injury to the cells, and the greater its affinity for 

 the blood cells the more antihemolysin is required to neutralize it. Comparative 

 experiments with normal and immune antihemolysins showed that these differ only 

 in the intensity of their action and not in their essential nature. 



The influence of the stromata and liquid of laked corpuscles on the pro- 

 duction of hemolysins and agglutinins, G. N. Stewart (Amer.Jour. Physiol, 11 

 (1904), No. 3, pp. 250-281). — Rabbits and guinea pigs were used as experimental 

 animals in these investigations. It was found that the stromata and hemoglobin- 

 containing liquid of blood corpuscles, after laking by the use of reagents, stimulate 



