Biographical Memoir of Asaph Hall 1829 1907

re are many journals, especially among those devoted solely to mathematics, in which the minor articles are not indexed. In the class of general science, some of the journals have no author-index and some have published no index whatever. To have examined these journals thoroughly would have consumed a much longer time than that allowed for the compilation of the list; therefore it may be properly inferred that the list is incomplete, though it is believed to contain every paper of importance. It should be noted that while assistant at the Harvard College Observatory, during the years 1857 to 1862, Mr. Hall was employed on the transit circle with the passages of clock stars and with lunar culminations in connection with the Lake surveys carried on by the Engineer Corps of the Army. He observed Donati's Comet in 1858. He "thoroughly revised" the Second Series of the Harvard Zones, and with Mr. T. H. Safford prepared the Third Series for the press. The results of these labors are contained in the Annals of Harvard College Observatory, vol. 2, part 2, and in vols. 3, 4, and 6. Excepting the appendices to the Washington Observations, comparatively few separates of Professor Hall's papers have been found. It was his custom to distribute the copies allotted to him among individuals interested in. their contents, rather than to libraries likely to contain sets of the journals. Only a few of the more important reviews have been noted. The name of the U. S....