282 



MEDICINAL TREATMENT. 



ate a lot of the meat raw. They all died within three months, 

 showing all the signs of " Fly," whereas some pups which were 

 kept shut up were fed on the same meat, but cooked, for several 

 days, yet none of them showed any sign of being affected." 



Pp. 46 to 66 are devoted to " Medicinal Treatment." 



"A. — Arsenic as a Curative Agent " (pp. 47-64). 



In connection with the experiments charts are given, showing 

 fluctuations in temperature, and in the number of blood 

 corpuscles and hsematozoa, and the number of grains of arsenic 

 administered daily. 



" (1.) Treatment in Horses " (pp. 47-56). 



The author writes (p. 47) : — " Since I have been here at 

 TJbombo I have tried the arsenical treatment on several horses, 

 donkeys, and dogs, but in this Interim Report I would rather not 

 make any general statement concerning the usefulness or other- 

 wise of the drug, leaving rather the reader to draw his own 

 conclusions from the experiments themselves. . . . 



-iC-"' 



Fig. 15. 



Horse suffering from Tsetse-fly disease, or Nagana 

 (after Bruce). 



*' The horses were given the arsenic in solution. The arsenic 

 was dissolved by heating in water with an equal quantity of 

 carbonate of soda. I made the solution in the following strength : — ■ 

 Arsenic 6 grs., carbonate of soda 6 gi's., and water 1 ounce. 

 The ounce of fluid was merely sprinkled night and morning over 

 his feed of crushed mealies, so that there was no trouble in the 

 administration of the drug." 



Since the subject of Tsetse-fly disease in horses is of general 

 interest, it may be useful, without going into the details of the 

 experiments, but as an indication of the results obtained, to 

 quote a few lines from the author's " Remarks " at the conclusion 

 of certain of the cases. 



Exp. 205a. — (This horse eventually died of Horse Sickness.) 



