280 EESULTS OF INOCULATION EXPEIUMENTS. 



blood kept liquid by some suitable means, and kept in a bottle at 

 the temperature of the air for several hours, would still retain its 

 infective power " (p. 20). 



In the preliminary experiment 10 c.cm. of blood were taken 

 from a dog suffering from Nagana, mixed with " a twentieth of 

 its bulk of a 0'5 per cent, citrate of potash solution," then kept 

 "in a bottle at the temperature oi the air (80^ F.) for seven hours," 

 and finally injected into a healthy native dog. Hsematozoa of 

 Fly Disease were found in the blood of the dog after five days, 

 " and he dietl of the disease twelve days later." 



" It was evident then that we might expect successful results 

 by injecting blood procured in the Fly Country and kejDt liquitl 

 by the above-mentioned means into nati\e dogs kept on the top 

 of the Ubombo" (p. 21). 



On pages 21 to .23 is given a statement, Nvith results, of 

 thirty-four experiments on native dogs, carried out on the above 

 lines, with blood from various species of wild animals. An 

 analysis of the results shows that in live cases the dog died from 

 an unknown cause; in twenty -one cases the dog remained healthy ; 

 in eight cases the dog conti-acted fly disease. 



On page 24, there is printed a tabulated statement showing 

 "the results of the above and other experiments, the various 

 species of wild animal being tabulated together." 



The following is an analysis of the rejiults : — 



Out of eight dogs inoculated with blood from buffaloes, one 

 dog contracted the disease. 



Out of thirteen dogs inoculated with blood from wildehecste, 

 three contracted the disease. 



Out of four dogs inoculated with blood from four Jcoodoos, 

 three contracted the disease. 



Tavo dogs were inoculated with blood from xcater-huclc, and 

 both remained healthy. 



Two dogs were inoculated with blood from two impala, and 

 both remained healthy. 



One dog inoculated with blood from a BurchelVs zebra re- 

 mained healthy. 



One dog inoculated with blood from a husli-huch contracted 

 the disease. 



Three dogs inoculated with blood from a stein-huclc, wart-hog 

 and wild-jjlg, respectively, all remained healthy. 



One dog inoculated with blood from a hijitna contracted the 

 disease. 



The author concludes this section of the " Report " with the 

 following remarks : — 



" These experiments I think prove that several species of wild 



