Elementary chemical microscopy (1921) Elementary chemical microscopy . elementarychemi00cham Year: 1921 156 ELEMENTARY CHEMICAL MICROSCOPY material tenaciously since they lock firmly in place, and thus the ringers do not become cramped during prolonged heat treatments. Work Tables. — The type of work table chosen by the chemist upon which to place his instruments and apparatus for micro- chemical investigations will depend largely upon his individual preferences or upon the character of the work he is called upon to perform.

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