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2:1 (1948) ica several species occur together mixed with other trees, and some
species form low shrubberies on poor sand plains, (such as Quercus ilicifolia and
Q. prinoides). In Mexico, the Fagales, especially the oak genus Quercus, find ...
The natural occurrence of leucite is compatible with the laboratory syntheses
because leucite occurs only in potassium-rich volcanic rocks. Important localities
are Leucite Hills, Wyoming; central Montana; Rome; Uganda; and Zaire.
Association of a mammalian spermatozoon with the egg surface occurs along the
lateral surface of the spermatozoon. ... several points of fusion occur between the
plasma membranes of the two gametes (i.e., the breakdown of membranes ...
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review