Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 56American Philosophical Society, 1917 |
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Acad acid aëroplane Amer anal Arts and Sci Assoc Astron axils base Basin beds Bull cells cent character Chem coal seams colored flowers colorless contains cotyledons Cretaceous crosses curve D.Sc deposits dorsal exempla F₁ F₂ factors feet thick Fell field formation fossils Fox Hills Geol Gesell gray green growth gust hybrid hypocotyl imbibition Inst Jacques de Vitry Laramie large number length LL.D Lond mangle mangrove maple mass maxillary barbel Mesaverde nebulæ observed Opuntia Pañcatantra parrot Past-Pres't peas pectoral Ph.D Phila Philadelphia Phys Pierre plants pods Pres't Professor purple dots Pygidium Rhizophora River roots round San Juan Basin sandstone Sc.D seed coats seedlings sex ratio shale snout species spine stories tannin temperature thin tion transpiration trees Troyan Tschermak University upper variation varieties velocity ventrals Vikrama vivipary wrinkled yellow
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Сторінка 471 - ... 4. The theories of alternations of moist and uniform with arid and zonal climates, as elaborated by Chamberlin, are in exact accord with the course of evolution of land vertebrates, when interpreted with due allowance for the probable gaps in the record.
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Сторінка 367 - To sum up, then, miscegenation commonly spells disharmony - — disharmony of physical, mental and temperamental qualities and this means also disharmony with environment. A hybridized people are a badly put together people and a dissatisfied, restless, ineffective people.
Сторінка 357 - The curve of second hardening, indicated by " 2 h," shows considerably greater generation of heat. Quenching temperature and hardness were not observed ; but it is known that the quenching temperature was much higher than 777°. The three curves thus far discussed were shown in the second paper already referred to, and the other curves here shown were subsequently plotted on the original curve sheet. The third curve showing spontaneous generation of heat is indicated by " 3q," meaning third quenching...
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Сторінка 355 - ... thermoelectric pyrometer. The latter was used as it came from the maker, without further calibration; hence the temperatures recorded may be several degrees in error, though they are thought to be relatively consistent. In the annealed condition specimen B was found to have a scleroscope hardness of 31. Each scleroscope hardness cited in this paper is the mean of at least ten consistent measurements, each measurement made on a fresh spot of surface carefully made smooth and flat. In order to...
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