Page:Popular Science Monthly Volume 50.djvu/653

Rh undergo within a period of twenty minutes I shall show yon upon the screen at the close of my address (see Fig. 1).

The confirmation of Laveran's discovery, as already stated, was first made by Richard in a communication to the French Academy of Sciences (February 20, 1882), then by Marchiafava and Celli



(1883), and subsequently by Councilman and by Osler in this country, by Golgi in Italy, by Manson of England, and by many other competent microscopists in nearly all parts of the world where malarial diseases prevail.

The intracorpuscular development of the plasmodium has