Report of first expedition to South America, 1913Members of the expedition: Richard PStrong [and others] . Fig. 1. — Papular Lesions on Inner Aspect of Dogs Ears. Appearing aboutone month after inoculation with material from early case of Fig. 2.^Showing Leishmania in a section of the lesion. Plate XL. —Uta. ETIOLOGY 179 visible, the largest measuring 6X3 mm., the other three notmeasuring over 5X3 mm. The pa])ules were closely September 23, Leishmania was observed for the first timein the lesions. The parasites were very difficult to find. Thelesions were eventually excised an
Report of first expedition to South America, 1913Members of the expedition: Richard PStrong [and others] . Fig. 1. — Papular Lesions on Inner Aspect of Dogs Ears. Appearing aboutone month after inoculation with material from early case of Fig. 2.^Showing Leishmania in a section of the lesion. Plate XL. —Uta. ETIOLOGY 179 visible, the largest measuring 6X3 mm., the other three notmeasuring over 5X3 mm. The pa])ules were closely September 23, Leishmania was observed for the first timein the lesions. The parasites were very difficult to find. Thelesions were eventually excised and other animals inoculated,but without result. VII GUAYAQUIL Sanitary Conditions and Prevailing Diseases The City of Guayaquil (Plate iii, page 7) is situated two andone-half degrees south of the equator, on the north bank of theGuayas river, about forty miles from its mouth, and just belowits formation by the junction of the Rio Grande and Daulerivers. The land upon which almost the entire city is situatedis flat, and has an elevation of only a few feet above the levelof the river. At the extreme right, or northern end of thetown, there is a low range of hills about five hundred to sixhundred feet in height, on the most eastwardly of
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