Originally published in 1883. This volume from the Cornell University Library's print collections was scanned on an APT BookScan and converted to JPG 2000 format by Kirtas Technologies. All titles scanned cover to cover and pages may include marks, notations and other marginalia present in the original volume.
George Frederick Barker was an American physician and scientist. He graduated from the Yale Scientific School in 1858. He was successively chemical assistant in Harvard Medical School in 1858–1859 and 1860–1861, professor of chemistry and geology in Wheaton College.