Report of first expedition to South America, 1913 . 1 Fig. 1. — Life cycle of Lympho-haematocytozoon Fig. 2. — Ulceration in large intestine. Plate XI. — Oroya Fever. ANIMAL EXPERIMENTS 35 Testicular inoculations in rabbits were first made with theidea of detecting or of excluding spirochaetal inoculations with the virus of verruga peruvianaproduce definite lesions but not of spirochaetal origin. Experiments I. July 7, 1913. 10 of blood were drawn from the median basilic vein of asevere case of Oroya fever (Case 15) which resulted fatally five daj^s later. Th
Report of first expedition to South America, 1913 . 1 Fig. 1. — Life cycle of Lympho-haematocytozoon Fig. 2. — Ulceration in large intestine. Plate XI. — Oroya Fever. ANIMAL EXPERIMENTS 35 Testicular inoculations in rabbits were first made with theidea of detecting or of excluding spirochaetal inoculations with the virus of verruga peruvianaproduce definite lesions but not of spirochaetal origin. Experiments I. July 7, 1913. 10 of blood were drawn from the median basilic vein of asevere case of Oroya fever (Case 15) which resulted fatally five daj^s later. Themicroscopical examination of the blood on this date revealed a very severe infectionwith Bartonella hacilliformis. Animals were inoculated with the blood at this timeand the notes of the experiments are as follows: Rabbit No. 33. — Testes inoculation with Oroya blood. July 7, 1913. Both testes (small) inoculated with of defibrinated bloodof case at Dos de INIayo Hospital about 1^ hours after 9. Temp, F. Testes small, normal. 11. 102°.3. firm, normal 15
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