The Scientific Monthly, Volume 13James McKeen Cattell American Association for the Advancement of Science, 1921 |
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acid activity adult agricultural American animals appear atomic weight average Bellomont beriberi birth birth-control body cent chemical chemical elements chemist chemistry child correlation curve death rate Descartes discovery disease Drosophila duration dysgenic Earl effect electricity elements environment especially eugenics eugenists experimental experiments fact factors fishes fluid Galois Gardiner Gart girl's hand Hassler helium Helmholtz heredity Hopi human important increase individual industry infant Institute interest Isabel de Vermandois J. J. Thomson knowledge laboratory large number less living marriage material mathematical means ment mental methods mother nature normal observed optic vesicle organic parents pellagra physical population possible practical present PRINCE OF MONACO problem produced Professor progress race radicles relation scientific scientist scurvy Society substances temperature Tewa theory tion University Virchow vitamin whole
Popular passages
Page 413 - ... the School of Hygiene and Public Health of the Johns Hopkins University...
Page 12 - Kelvin has shown that if a drop of water were magnified to the size of the earth the molecules of water would be of a size intermediate between that of a cricket ball and of a marble.
Page 265 - Das Buch der Natur von Konrad von Megenberg. Die erste Naturgeschichte in deutscher Sprache. Stuttgart, Karl Aue 1861.
Page 302 - Matter,' originally published in 1863, Graham conceived that the various kinds of matter, now recognised as different elementary substances, may possess one and the same ultimate or atomic molecule existing in different conditions of movement.
Page 481 - C, standing on the floor, both appear to be electrized; for he, having only the middle quantity of electrical fire, receives a spark upon approaching B, who has an over quantity; but gives one to A, who has an under quantity. If A and B approach to touch each other, the spark is stronger, because the difference between them is greater. After such touch there is no spark between either of them and C, because the electrical fire in all is reduced to the original equality.
Page 321 - Definite and complete in its area as it is, it is but a well-drawn part of a great chart, in which all physical science will be represented with every property of matter shown in dynamical relation to the whole.
Page 480 - These appearances we attempt to account for thus: We suppose, as aforesaid, that electrical fire is a common element, of which every one of the three persons above mentioned has his equal share, before any operation is begun with the tube.