VETKHIN.'VEY MEDICINE. 675 



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patbosonic orjjanism these corpuscles were transferred troiii one animal to 

 anotluH- \vhi<-li had recently been inoculated. The author concludes from his 

 experiments that the serum and leucocytes cooperate in protecting the animal 

 orfranisni a.irainst infection. In this work the serum attacks tlu- l)acteria 

 directly, while the leucocytes assist in counteract int; and destroying: bacterial 

 toxins. 



Causes of the diminution of natural resistance to infection, li. Tromsdouf 

 (.•l/-f7(. //////.. •).'' ( l!)(>i!). A o. /. 1)1). I-IIO). — The present article is a contribution 

 to the study of inmnuiity. The author carried on an extensive series of experi- 

 ments, the results of which iuteri)reted partly in the lifjjht of other experiments 

 alonj? the same line may be briefly sunnnarized in the statement that while 

 there may be other factors in determining the dejji'ee of inununity, the motile 

 power of the leucocytes, the ability of certain cells to form alexins, and the 

 power of the ori;anism to jirodnce s])ecific protective bodies are the chief factors 

 concerned. 



The relation of autolysis to the histological changes occurring iu necrotic 

 areas, H. G. \Yells (Jour. Med. Research, J.J (1906), No. 1, pp.. I.'i9-165). — A 

 chemical and histological study was made of the changes which take place 

 during the necrosis of the tissue. There is first a decomposition of the nueleo- 

 proteids hi ordinary infarcts. The proteid structure of the cell is attacked by 

 proteolytic enzyms and such infarcts are absorbed through a digestive action 

 of the leucocytes. 



Report on the proceedings of the free society for micro-biology in the 

 institute for infectious diseases in Berlin, A. Wassekmann {CnithL Bakf. 

 [etc.], 1. AM., Ref., 38 {1906), Beiheft, pp. 120, pi. J).— The free society for 

 niicrobiolog.y met in Berlin, June 7-9, 190G, and at these meetings a large number 

 of papers dealing with bacteriological problems was read. The author has pi-e- 

 pared a summary of the most important points contained in these papers. I'ar- 

 ticular attention was given to a discussion of the problems of inununity, the 

 general one being stated by R. Kraus ; immunity toward anthrax, by Gruber ; 

 toward vibrio in i)igeons, by R. I'fciffer and K. Scheller ; and toward plague. 

 by Lohlein. Among the other matters of interest from the veterinary stand- 

 point were a discussion of the (luantitative relation of tubercle ])acilll to infec- 

 tion, by Fliigge: the proiterties of serum in cases of tuI)erculosis, by Sobern- 

 heim ; and the etiology of roup, by R. Midler. 



Transmission of resistance to diphtheria toxin by the female guinea pig 

 to her young, .1. F. A.ndkijson {.Ioki: Med. Rcscaich. J.') (19(16), Xo. .>, pp. 

 2Jil-260). — The iKJSsibility of tlie transmission of inunimity to (lis(>ase is being 

 studied fronj (>very standi)oint, and the present article is a distinc-t contribution 

 to the subject in that the author's experiments showed that ordinarily all of 

 the young of different litters from a female guinea pig previously immunized 

 to diphtheria were in turn iuiinuMe to the disease. Such imnumity. however, 

 was not transmitted to the second generation. A distinct cumulative effect was 

 observed from the repeated use of diphtheria toxin. In further experiments 

 it was found that the female guinea pig may transmit siundtaneously to her 

 young an imnumity to dii)htheria toxin and a greatly increased susceptibility 

 to horsi' serum. 



The pathogenic action of blastomycetes injected into the trachea, F. San- 

 FELKE (Centbl. Bakt. {etc.], 1. Abt., Oiifj., .',1 (1906), Nox. I. pp. 61-11 : .>. pp. 

 195-200 : 3, pp. 332-33S. pi. f). — The author's experiments were made on 

 guinea pigs and rabbits, and a considerable variety of blastomycetes were used, 

 including SacclKtroDii/cis ruiii.s and N. iici>formans. The effect upon the tissue 



