1016 EXPERIMENT STATION RECORD. 



Staphylococcus pyogenes aureus. It was found that turpentine oil killed anthrax 

 bacilli when applied in a concentration of 1 to 100 for a period of 60 minutes, while 

 the staphylococci were killed by a concentration of 1 to 10 for the same period. 

 Nitrobenzol, even in a concentration of 1 to 10, did not kill anthrax bacilli or staphy- 

 lococci within a period of 21 hours. 



Morpholog'ical changes in the blood during- hemolysis, Y. Fukuhara [Beitr. 

 Path. AiKil. II. All(j. Path., S2 (1902), Xd. 2, pp. ..'m-275, pJ. i).— The author studied 

 the microscopic changes in the structure of the red blood corpuscles under the 

 influence of substances which cause hemolysis. The animals from which material 

 was obtained included pigeons, guinea pigs, rabbits, and carp. For producing hemo- 

 lysis the author used weak solutions of soda (0.2 per cent) and various stains, such 

 as crystal-violet, safranin, and methylene blue. The results of these investigations 

 may ) )e sununarized as follows : Small portions of the red blood corpuscles are constricted 

 off during the process of hemolysis; this phenomenon, however, is not especially 

 characteristic of hemolysis, since it also occurs in the coagulation of the blood. The 

 nuclei are set free and the coloring matter of the red corpuscles is gradually dissolved. 

 After the red blood corpuscles lose their hemoglobin, they greatly resem1)le leuco- 

 cytes and are distinguished from the latter chiefly by the fact that they become 

 etiolated more rapidly. 



The red blood corpuscles and infection, M. Dominici {Arch. Med. Expcr. ct 

 Audi. I'dlli., f'nri.f, I. ser., 14 {1902), No. 6, pp. 681-728). — An extensive series of 

 experiments was undertaken for the purpose of determining certain details in the 

 behavior of the red l)lood corpuscles during the progress of infectious diseases in man 

 and animals. The chief purposes of the author were to study the diapedesis and 

 destruction of the red blood corpuscles, the behavior and excessive production of 

 nucleated red blood corpuscles in the l)one marrow and in the sj^leen, and the par- 

 allel reactions of the red and white blood corjiuscles. The work of other authors 

 on this subject is critically discussed, in connection with bibliographical references. 

 The author infected experimental animals with coli bacillus, typhoid bacillus, and 

 other organisms. It was found that the production of nucleated blood corpuscles in 

 rabbits took place quite rapidly in the peripheral blood vessels at the beginning of 

 septicemic infection. The author was unal)le to observe any evidence of extensive 

 destruction of the red blood corpuscles in sui'h affections as icterus and hemor- 

 rhages. The spleen is believed to be the only organ in which the red blood 

 corpuscles arc actually destroyed. 



Structure and function of wandering cells, phagocytes, and pus cells, 

 R. Klemensikwicz {Beltr. J'ath. Anat. n. Allij. Path., 32 {1902), No. 3, pp. 351-434, 

 pis. 3) . — The investigations reported in this paper were undertaken for the purpose of 

 explaining as far as possible the nature of leucocytes with polymorphous nuclei. 

 The experimental animals were l)atrachia. The author found that the finely granu- 

 lated leucocytes with polymorphous nuclei constitute a well-marked group of cells 

 which occur not only as cells in the blood of the organs and larger vessels, but also 

 as pus cells and j^hagocytes. The structure of the cytoplasm of these cells is charac- 

 teristic and apparently constant. The author believes that all cells with polymor- 

 phus nuclei represent merely one kind of ])hysiological structures which are not so 

 strictly confined in function as are muscle or nerve cells. It is suggested as desira1)le 

 that certain constant parts of these cells be distinguished by names, such as secre- 

 tory apparatus, respiratory and excretory organs, motor organs, etc, 



Infectiveness of milk of cows which have reacted to the tuberculin test, 

 J. K. IMoiiLER ( U. S. Dept. Agr., Bureau of Animal Industry Bui. 44, pp- 93, pU. 2). — 

 Asa result of the death of a number of cattle from rabies at the Government Asylum 

 for the Insane, St. Elizabeth, D. C, post-mortem examinations were made when it 

 was found that the herd was badly infected with tuberculosis. Twelve animals upon 

 which post-mortem examinations were made were found to be extensively tuber- 



