Microscopical Petrography

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. Fig. 3. Inclusion as in Fig. 2, containing also thin, pale-green microlites of hornblende, resting upon the walls of the including quartz, and projecting into the interior of the fluid. Fig. 4. Same inclusion in the quartz of granite; black microlites accompanying the salt cube.