Note 195 — ON PARASITES IN GENERAL. (continued 4)
Reading edition
The discovery of Laveran is in no way lessened by the fact that one investigator or another (according to Blanchard [Arch. de Paras., vii, 1903, p. 152], P. F. H. Klencke in 1843) had seen, mentioned and depicted malarial parasites. (Neue phys. Abhandl. auf. selbständ. Beob. gegr., Leipzig, 1843, p. 163, fig. 25). In 1847 Meckel had recognized that the dark colour of the organs in persons dead of malaria was due to pigment. Virchow in 1848 stated that this pigment occurred in blood cells. Kelsch in 1875 recognized the frequency of melaniferous leucocytes in the blood of malarial patients. Beauperthuy (1853) noticed that in Guadeloupe there was no malaria at altitudes where there were no “insectes tipulaires,” and suggested that the disease was inoculated by insects.