Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 68American Philosophical Society, 1929 |
Зміст
Mans Future in the Light of His Past and Present By ALEŠ | 1 |
The Vegetation of the Screes or Talus Slopes of Western North | 13 |
Saxifraga Tolmiei Torr Gray a screecoverer | 20 |
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American amoeba Anax junius animals apple Arthropods atom Babur Bābur's Beisan body botanical Bradbury Bradbury's Campos do Jordão cell division cell number changes chemical civilization compounds consolidation container Corixids curves death discussion disease ductless ductless glands Egypt electron ether waves evidence exuvia fact frequency given glands gravitation growth by increase growth factor growth in length gudermannian Hamitic human hyperbolic angle hyps influence insects instar interest Interstate Commerce Commission Jefferson larva larvæ Liverpool living matter Mayfly Mayfly larvæ mean sealevel metazoa mitosis moults Nannothemis bella nature neurones observed Odonata organism Oxyaena Oxyaenidae Palaeonictis paper period philosophers photograph plants potential prehistory present protoplasm radians railroad rate of growth Read April relation result root Rousseau scree Semitic silicate skeleton species stage structure sulfhydryl Sumerians temperature tion tissue tumors vegetation