CLARK, Alonzo Howard, naturalist, born in Boston, Massachusetts, 13 April, 1850. He was educated in the public schools of Boston, Claverack College, Centenary collegiate institute, and at Wesleyan University, leaving the latter at the close of his sophomore year to become assistant in charge of the United States fish commission station at Gloucester, Massachusetts, during 1879-'80. In 1880 he was appointed special agent of the 10th census, and in 1883 on the executive staff to represent the United States at the International fisheries exhibition, London, England. He became in 1884 assistant in the department of arts and industries at the United States national museum, Washington. His writings, which have appeared principally as government publica-cions, include "Statistics of Fisheries of New Hampshire, Rhode Island, and Connecticut" (1882); "Statistics of Fisheries of Massachusetts" (1882); "History of the Mackerel Fishery," in parts (1883);" The Fisheries and Fishery Industries of the United States" (1884 et seq.), a series of quarto volumes, in the editorship of which Mr. Clark has been associated, and to which he has contributed special chapters on "The Whale Fishery," "The Antarctic Seal Fishery," " The Menhaden Fishery," and " The Preparation of Fishery Products";" Report of the Exhibit of the Fisheries and Fish-Culture of the United States, made at London," and " Catalogue of Fishery Products and of Apparatus used in the Preparation," forming together Bulletin 27 of the National museum (1884). He is the associate author and editor of " History and Present Condition of the Fisheries and Fish Industries of the United States" (1886).