766 BIOGRAPHICAL MEMOIRS. 



was at once favorably received in learned and social circles of Cam- 

 bridge and Boston ; and when delivering a course of lectures at the 

 Lowell Institute, he first became acquainted with Miss Jane Lathrop 

 Loring, daughter of Mr. Charles Greely Loring of Boston, to whom he 

 was married on May 4, 1848. From this time his energies were devoted 

 to building up a botanical establishment at Cambridge — for what was 

 in existence before 1842 hardly deserves mention — and to the complo. 

 tion of a " Flora of North America." The number of collectors and 

 explorers had by this time greatly increased, and the material they had 

 brought together contained so much that was new, that it was plain 

 that the original plan of the " Flora " must be changed, for the two 

 volumes already published had hardly appeared when a revision seemed 

 necessary. It was not until many years later, in 1878, that the first part 

 of the new " Flora'' appeared ; and he continued to labor toward the 

 completion of his great work until death forced him to relinquish the 

 unfinished task. 



He continued in the exercise of the active duties of lecturer and 

 instructor until 1872, when he was relieved of this charge by the ap- 

 pointment of a colleague, Prof. G-. L. Goodale ; but he gave occasional 

 lectures in the college for a few years longer. In 1873 he resigned his 

 office of Director of the Botanic Garden, and Prof. C. S. Sargent was 

 appointed his successor. He retained the title of Fisher Professor and 

 Director of the Herbarium until his death, although he was in part 

 relieved of the responsibilities of the latter position by the appoint- 

 ment of Mr. Sereno Watson as Curator of the Herbarium in 1874. 



His long residence and arduous labors at Cambridge were varied and 

 relieved by several journeys, some of which were of considerable extent, 

 and all of which were made to contribute to the advancement of work 

 on the "Flora," either by enabling him to examine in the field the 

 plants which he was studying, or by examination of foreign herbaria, 

 and consultations with leading foreign botanists. He made three trips 

 to California, in 1872, in 1877, when he was in company with Sir J. D. 

 Hooker, and in 1885, when he visited not only southern California and 

 tlie great Colorado CaQon, but journeyed into Mexico as far as Orizaba 

 and Cordoba. He was once in Florida, in 1875, and made, besides, 

 several trips to the mountains of North Carolina, where he botanized at 

 different times with his botanical friends, Sullivan, Carey, Engelmaun, 

 Canby, and Redfield. 



He made in all six journeys to Europe, including the journey already 

 mentioned and a short business trip of six weeks to Paris in the sum- 

 mer of 1855. On the other journeys he was accompanied by Mrs. Cray. 

 When abroad, he always spent much of his time with the English 

 botanists, among whom he counted many warm personal friends; and 

 he looked forward with special pleasure to his visits at Kew, where he 

 was welcomed by the director. Sir W. J. Hooker, and by his son and 

 successor, Sir J. D. Hooker, for forty years his intimate friend, whose 



