The Scientific Monthly, Volume 10James McKeen Cattell American Association for the Advancement of Science, 1919 - Electronic journals |
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agricultural American animals Association astronomical body California cause cent century B.C. changes characters chemistry chromatin chromo chromomeres civilization clerestory color curve cytoplasm defects differentiation disease division earth earthquakes Egyptian environment Europe evidence evolution fact factors function gametes genes germ cells germplasm Greek heredity human hypothesis important increase individual inertia inheritance institutions interest known large number less matter mechanism Mendelian ment mental mitosis mutations National natural Neanderthal nucleus number of chromosomes observed occur organization Oriental otitis media philosophy physical Pithecanthropus planetesimal plants Pleistocene population possible present probably problem produced Professor progress pyramid RATIO PER 1000 reconstruction reduction division relatively Retzius rhythm scientific sections seems sex chromosomes shown social society species sperm spermatozoa spongioplasm stage structure Sumerian synapsis theory tion tuberculosis United University various zygote
Popular passages
Page 240 - Twinkle, twinkle, little star, How I wonder what you are! Up above the world so high, Like a diamond in the sky.
Page 173 - Ladybird, ladybird, fly away home ; Your house is on fire, your children will burn " ? What answer did ladybird make?
Page 22 - COGAN, physician and schoolmaster of Mani Chester, in 1584 published a book to which he gave the modest title " The Haven of Health." At the time of the publication Queen Elizabeth had been on the throne twenty-six years. Four years later the Spanish Armada was to be ingloriously swept from the seas by a combination of British valor and unfriendly winds. Three years were still to pass before William Shakespeare would move to London. The jubilee of learning was soon to be at its full height. Galen...
Page 611 - The immediate check may be stated to consist in all those customs, and all those diseases, which seem to be generated by a scarcity of the means of subsistence ; and all those causes, independent of this scarcity, whether of a moral or physical nature, which tend prematurely to weaken and destroy the human frame.
Page 107 - Mendel, professor of physiological chemistry, Yale University; JR Murlin, professor of physiology and director of the department of vital economics, University of Rochester; RA Pearson, president of the Iowa State Agricultural College; HC Sherman, professor of food chemistry, Columbia University; AE Taylor, Rush professor of physiological chemistry, University of Pennsylvania; and A. F. Woods, botanist, president of Maryland State College of Agriculture. This committee will devote its...
Page 316 - Leaves have their times to fall, And flowers to wither at the north wind's breath, And stars to set — but all, Thou hast all seasons for thine own, O death ! Mrs.
Page 530 - ... in the proposal to derive from corn cobs furfural, which may be used as a base from which to draw dyes, just as certain coal tar products are employed. Thus, furfural green, a favorite tint, may eventually be derived from the refuse of native maize.
Page 241 - We don't know where we're going, but we're on our way!" As Professor Walton Hamilton once pointed out, this refrain is a remarkably apt characterization of the state of mind into which some contemporary economists have got themselves. But gay or not, the state of mind which is described by this characteristically Hamiltonian irony is one of complete and...
Page 386 - They generalize it in a legitimate and intelligible manner. Such complications as these are clearly in accordance with truth and are to be welcomed ; but the complicated theory of gravitation created this century by Einstein and developed by his successors, and the consequent overhauling of space and time relations, do not at present commend themselves to me, nor I think to others of what I suppose must be called the older school. Meanwhile the full-blown theory has the courage of its conviction...
Page 324 - ... slightly less than 10 per cent. It is estimated that there are 650,000 teaching positions in the public schools of the United States, and if these figures hold good for the entire country there are 39,000 vacancies and 65,000 teachers below standard. These same superintendents report that 52,798 teachers dropped out during the past year, a loss of over 22 per cent. On this basis the total number for the entire country would be 143,000. The reports show that the shortage of teachers and the number...