160 IMMUNITY OF GOATS ASSERTED BY MOHR. 



62. 1876. E, Mohr. 



"To THE Victoria Falls op the Zambesi." (Trans- 

 lated from the German by N. D'Anvers. London : Sampson 

 Low, Marston, Searle and Rivington.) Pp. 192, 244, 

 286-287, 290, 352-354. 



Beneficial effects of ammonia, administered internally, 

 upon horses apparently suffering from Tsetse-fly disease. 



" Jennings' party came to see me every evening. . . . 

 They had just come from the banks of the Ganyana 

 River, near the Zambesi, and three of their horses 

 showed symptons of the Tsetse sickness, the result of the 

 bite of the venomous insect of that name. I therefore 

 administered strong doses of eau de I'huis, or extract of 

 ammoniac ; and all I can say as to the results of this 

 treatment is, that none of the horses died" (p. 192). 



Goats stated not to suffer from Tsetsefly disease. — 

 "Goats are especially suited for long journeys ; on account 

 of their elastic natures, they can accommodate themselves 

 to any cii'cumstances, live upon any and the scantiest 

 food, walk immense distances, and above all, they never 

 suffer from the bite of the Tsetse-fly " (p. 244). 



In Mataheleland, south of the Shangani, May, 1870. — " I 

 marched with the greatest caution, as we might now at any 

 moment enter the district rendered dangerous to domestic 

 animals by the pi-esence of the Tsetse-fly. I generally rode 

 on half a mile in advance of the rest of the party, or some 

 natives reconnoitred in front, so as to announce the appear- 

 ance of the poisonous insect at once " (pp. 286-287). 



May 2bth, 1870. — As above : from the avithor's map 

 the precise locality is nearly due south of Wankies. — ■ 

 " Bokhis, who had ridden forward on Roland at twelve 

 o'clock, came back at three in the afternoon with the 

 news that the Tsetse were close upon us, and brought 

 half-a-dozen of these poisonous flies, which had settled on 

 his horse's neck, as a positive proof of his assertion. We 

 could not therefore think of advancing any farther with 

 the horses and oxen. Latitude 19"^ 11' S. was to be the 

 most northerly point reached by our waggon ; and as 

 there was plenty of good grass and water here, we set 

 up a permanent encampment for the animals and their 

 attendants, resolving shortly to press on on foot for the 

 Zambesi, accompanied only by our baggage carriers " 

 (p. 290). [Cp. 42.] 



