USE OF AMMONIA BY MAUCH. 145 



33. 1868. 



" La Tsets6, Diptere de l'Abyssixie " {Becueil de 

 Medecine Veterinaire, Vol. 45 (5. Ser. Vol. V), pp. 148- 

 149). — From VOinnion Nationale, Dec. .3, 1867. 



[I have not seen this paper.] 



34. 1868. 



" Die Tsetse-Fliege " {Aus der Natiir, 46. Band (Neue 

 Folge, 34. Band), pp. 783-784).— See also 47. Band 

 (Neue Folge, 45. Band), 1871, p. 447. 



[I have not seen either of these papers.] 



35. 1868. F. Jaennicke. 



An article in Ergdvzungshldtter zur Kenntniss der 

 Gegemcart, Band III., p. 680. 

 [I have not seen this paper.] 



36. 1869. Karl Mauch. 



Mittheilungen aus Justus Perthes' GeograpMscher Anstalt 

 iiher Wichtige Neue Erforsclmngen anf dem Gesammtgehiete 

 der Geographie, von Dr. A. Pctermann. 15. Band, 1869, 

 pp. 190-191. 



In a letter written in the course of his third journey 

 of exploration from the Transvaal towards Matabele Land, 

 and dated from the Olifant's River, 24° 20' S. Lat., 

 31° 37' E. Long., July 20, 1868,* Mauch says:— "For 

 two days past we have been in the fly (Tsetse) country ; 

 neither in the case of the dog nor in that of the ox was it 

 possible to make an external application of Asa f(vtida, 

 while an internal application of ammonia was similarly 

 impossible owing to want of fat and meat" (p. 190). 



In a further letter from Inyati, dated October 19, 

 1868, Mauch writes: — "The pack-ox I was obliged to 

 shoot and eat on the Letsobo, although it was seriously 

 injured by Tsetse ; the dog died from want of flesh food, 

 or indeed of food of any kind, after I had secured him 

 against the Tsetse by the aid of ammonia. . . ." (p. 191). 



37. 1869. John and Mrs. Petherick. 



"Travels in Central Africa and Explorations 

 OP THE Western Nile Tributaries " (London : Tinsley 

 Brothers), Vol. I., pp. 220-221, 222. 



* See map: " Originalkarte von C. Mauch's Keisen im lunern vou 

 Sud-Afrika" (Feiermann's Mittheilungen, 16. Band, 1870). 



L 



