The book First Lessons in Geology was written by author Alpheus Spring Packard Here you can read free online of First Lessons in Geology book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is First Lessons in Geology a good or bad book?
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AMERICA DURING THE DEVONIAN PERIOD. 83 whose wings expanded 3^ inches, together with another insect. It has been claimed by some that these beds were Carbonifer- ous, but with these remains occurred those of a little " sera- phim" {Eurypferus pii'Ucaris) which type characterizes theDero- nian, and were replaced in the Carboniferous by forms like the^ horse-shoe crab. These fossils occur in the Hamilton shales, with remains of beautiful ferns. The Devonian may-flies must have had the same habits... as those of the present day, and we have represented one flutter- ing in the air. Like their modern representatives, they must have lived in their earliest larval life in pools and sluggish brooks, surrounded by hosts of other insects upon which they fed. Their gauze-like, gleaming wings could have been seen fluttering through the ferns, and as they hovered over the inlets and lagoons by the low shores, or fell haplessly upon the surface of the water, they must have been snapped up by the small ganoid fish which peopled the quiet sandy and muddy bays.
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