788 



EXPERIMENT STATION EECORD. 



is reported to have spread during tbe 3'ear into luiiufected territory, a heavy 

 mortality i-esultiug, small dairymen in some cases losing their entire herds. Small 

 outbreaks of pleuro-pueumonia occurred throughout the state. The animal 

 returns for the year show 4.6 per cent of the cows and 5.2 per cent of the pigs 

 slaughtered to have been wholly or partially condemned for tuberculosis. 

 Actinomycoses is said to be a very common disease aud contagious abortion is 

 becoming more evident in the dairying districts. 



Common dangerous coinmunicable diseases of dom.estic anim.als in the 

 Philippine Islands, D. G. Moberly {['hilipinne Agr. Rev. [English Ed.], 1 

 (1908), JVo. 3, pp. 110-135). — Information is given in the form of questions and 

 answers on rinderpest, surra, foot-and-mouth disease, anthrax, hog cholera, 

 glanders, hemorrhagic septicemia, aud ulcerative lymphangitis, with methods 

 for disinfecting. 



The influence of symbiosis upon the pathogenicity of micro-organisms, 

 W. E. MusGRAVE [PhiUppiiic Jour. ScL, B, Med. Sci.. 3 (IDOS), Xo. 2. pp. 77- 

 88). — Bacterial and animal symbiosis are discussed at length by the author. 

 Many of the phenomena not now understood in the etiology and pathology of 

 disease are said to be due to symbiotic combinations between micro-organisms. 

 Variability in the virulence of bacteria is one of the most marked features and 

 the reason for this variability is but partially understood. The author con- 

 cludes that " the most promising field for laboratory research in the future will 

 be the study of cause and effect, in the complex relations in which they occur 

 In nature, of the interrelation aud interaction of micro-organisms with each 

 other and in their environment of complex symbiosis aud the ever changing and 

 multiple conditions found in hosts." 



Protozoa and disease, J. J. Clarke (London, 1908, pt. 2, pp. XII +138, figs. 

 53). — ^Attention is called to the great advance in our knowledge of the Sporozoa 

 since the appearance of part 1 of this treatise (E. S. R., 15, p. 405). The causes 

 and nature of several diseases of man make up the main part of this volume. 

 The life histories of both nonparasitic aud parasitic protozoa are followed by 

 notes on tropical diseases, ticks, and piroplasmosis. In the concluding chapter 

 the author considers the infective genital tumors of dogs. 



The prevalence and distribution of the animal parasites of man in the 

 Philippine Islands, with a consideration of their possible influence upon the 

 public health, P. E. Garrison (Philippine Jour. Hoe., B. Med. Sei., 3 (1908), 

 No. 3. pp. 191-209). — The results of examinations of feces of prisoners at Bilibid 

 prison made in 1907, show the population of the islands to be almost universally 

 infested with animal parasites. Of 4,106 prisoners examined, 3,447, or 84 per 

 cent, were found to be infested. No particular part of the islands appeared to 

 be subject to any excess of infection. The results are summarized as follows : 



Prevalence of <iiiiiu(il pdrasites in the feces of 'i.lQG prisoners in the Philippine 



Islands. 



