...termed Active Molecules, appear to be spherical, or nearly so, and to be between t-20,00° and 1-30,000 of an inch in diameter; and that other particles of...currents in the fluid containing them, nor depended on the intestine motion which may be supposed to accompany its evaporation. These causes of motion, however,...

...termed Active Molecules, appear to be spherical, or nearly so, and to be between 1-20,000 and 1-30,000 of an inch in diameter; and that other particles of considerably greater and various size, and cither of similar or of very different figure, also present analogous motions in like circumstances....

...termed aftive molecules, appear to be spherical, or nearly so, and to be between 1-20,000 and 1-30,000 of an inch in diameter ; and that other particles...currents in the fluid containing them, nor depended on the intestine motion which may be supposed to accompany its evaporation. These causes of motion, however,...

...have termed active molecules appear to be spherical or nearly so and to be between ioinr to roTinr of an inch in diameter, and that other particles of...present analogous motions in like circumstances." In his book on "The Brownian Movement and Molecular Reality," Jean Perrin, the well-known French chemist,...

...and to be between 1/20000 and 1/30000 of an inch in diameter [about one-thousandth of a millimeter]; and that other particles of considerably greater and various size, and either of similar or very different figure, also present analogous motions in like circumstances. "I have formerly stated...