Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 1058
ung in Gesteinru(translated into English bv F. H. Hatch); F. Rutley, The Study of Pocks, 3rd edition,1884, and Rock-fcrming Minerals, 1888; J. J. H. Teall, British Pe^Oflrop*y,_1888 \Ch. Velain, Conferences de Petrographie, ler fascicule Paris, 1889; F. Zirkel,Lehrhuch der Petrographie, 2 vols.… … 996 THE MICROSCOPE IN GEOLOGICAL INVESTIGATION intermediate between that of a glass and a crystalline body, hence-are optically inactive. The conditions of their formation have beenexperimentally determined by Vogelsang. The bodies belonging to the highest stage of development arecalled microlites…
Microscopy
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