The New Encyclopaedia Britannica
Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries - 934 pages
 Propaedia: outline of knowledge and guide to the Britannica.--- Micropaedia: ready reference and index.--- Macropaedia: knowledge in depth.
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Some of these chemical variants have mineral species names. Besides the
chemical variants of the calcium phosphate apatites, numerous compounds can
be synthesized that exhibit a structure identical or closely related to that of apatite
The density of chlorapatite is about 3.2, and the structure is similar to that of other
apatites but differs in the position of the halogen. Because the chloride ion is 1.8
A (one angstrom unit [A] equals 10~8 centimetre) in size, it lies between two of ...
The third step in the description of the molecular structure of a polymeric material
is the elucidation of the chain ... unit of structure (1) (in which X is any constituent)
may, for instance, be joined in two ways to give the structures (2) or (3).
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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