The Classification of Animals Based on the Principle of Cephalization

On the Four Rocks of the New Haven Region, East Rock, West Rock, Pine Rock Mill Rock: In Illustration of the Features, Non-Volcanic Igneous Ejections; With a Guide to Walks and Drives about New Haven (Classic Reprint)

The American Journal of Science, Vol. 139: Nos. 229-234, January to June, 1890 (Classic Reprint)

United States Exploring Expedition, During the Years 1838, 1839, 1840, 1841, 1842, Under the Command of Charles Wilkes, U. S. N, Vol. 10: Geology (Classic Reprint)

The American Journal of Science and Arts: Vol. XXXIV

On the Four Rocks of the New Haven Region, East Rock, West Rock, Pine Rock Mill Rock: In Illustration of the Features, Non-Volcanic Igneous Ejections; With a Guide to Walks and Drives about New Haven (Classic Reprint)

The American Journal of Science, Vol. 139: Nos. 229-234, January to June, 1890 (Classic Reprint)

United States Exploring Expedition, During the Years 1838, 1839, 1840, 1841, 1842, Under the Command of Charles Wilkes, U. S. N, Vol. 10: Geology (Classic Reprint)

The American Journal of Science and Arts, Vol. 111: January to June, 1876 (Classic Reprint)

The American Journal of Science and Arts, Vol. 113: January to June, 1877 (Classic Reprint)