Reports of the First, Second, and Third Meetings of the Association of American Geologists and Naturalists, at Philadelphia in 1840 and 1841, and at Boston in 1842. Embracing Its Proceedings and Transactions

Reports of the First, Second, and Third Meetings of the Association of American Geologists and Naturalists, at Philadelphia in 1840 and 1841, and at Boston in 1842. Embracing Its Proceedings and Transactions