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 142 COOKE. COOLIDGE. ative Bank, having been prominently iden- tified with its incorporation. He is a leading member of the Milford Business Men's Association; was connected GEORGE P. COOKE. with the militia for a number of years, and is chairman of the Democratic town and senatorial district committee. While always taking a lively interest in the politics of the State, he has uniformly refused to be a candidate for office, though he has done much to shape the local policy of his party. Ever since he has been a resident of Milford, he has com- manded a nourishing practice in his pro- fession. COOKE, josiah Parsons, son of Josiah Parsons and Mary (Pratt) Cooke, was born in Boston, October 12, 1827. He received his early education at the Boston Latin school, and was graduated from Harvard in 1S48. During the next year he became tutor in mathematics, sub- sequently instructor in chemistry, and 111 1850, Erving professor of chemistry and mineralogy. Professor Cooke was the first to introduce laboratory instruction into the undergrad- uate course of an American college, and has successfully labored to render- the in- ductive methods of experimental science a legitimate means of liberal culture, not only in the college, but also in the prepara- tory school. Professor Cooke's work has been largely that of instruction, and in addition to his duties at Harvard, he has given courses of popular lectures in New York, Baltimore, Brooklyn, Lowell, Washington, and Wor- cester, and six courses at the Lowell Institute, Boston. As director of the chemical laboratory of Harvard Col- lege, he has published numerous contri- butions to chemical science, most of which have been collected in a volume entitled "Chemical and Physical Researches" (1SS1). The investigation of the atomic weight of antimony (1880) was one of the most brilliant and perfect pieces of chemical work ever executed in this country. He has been editorially connected with the " American Journal of Science," and the " Proceedings of the American Academy of Sciences and Arts." His " New Chem- istry " was the earliest exposition of the principles of molecular chemistry. Pro- fessor Cooke is a member of many scien- tific societies. In 1872 he was elected to the National Academy of Sciences. He is an honorary fellow of the London Chemical Society. In 1882 he received the degree of LL. D. from the University of Cambridge, England, and in 1889 the same degree from Harvard. His published works include "Chemical Problems and Researches" (Cambridge, 1857); "Ele- ments of Chemical Physics" (Boston, i860); "First Principles of Chemical Philosophy" (1882, revised edition); "The New Chemistry" (New York, 1872, re- vised, 1884); "Fundamental Principles of Chemistry " (Cambridge, 1886); " Religion and Chemistry" (New York, 1864); "Sci- entific Culture and Other Essays" (New York, 1881, with additions, 18S5); "The Credentials of Science, the Warrant of Faith" (New York, 1888). He was married at Lowell, February 6, 1S60, to Mary Hinckley, daughter of Elisha and Hannah (Hinckley) Hunting- ton. Mr. Huntington was at one time mayor of Lowell, and at another lieuten- ant-governor of the State. COOLIDGE, TIMOTHY AUGUSTUS, son of William and Ann (Leighton) Cool- idge, was born in Natick, Middlesex county, June 25, 1827. The district school bestowed upon him an elementary education, and beyond this he has depended entirely upon his percep- tive faculties, studying from the world about him.