From the family of the late M. de Jussieu, you should receive a copy of the “Epistolæ Linnæano-Jussieuanæ,” with our late friend’s notes, etc., the last scientific work of his too short life.[28] I intended to send you a copy myself, but at the request of M. Ramond I surrendered the small extra edition to his charge for distribution. In due time you will have a copy in the volume of the “Memoirs of the American Academy” also. My daguerreotype of M. Jussieu was most opportunely taken. His family, having no recent portrait, have solicited the loan of it, to aid in the preparation of an engraved likeness; and I have placed it in their hands. I delayed the last sheet of the “Correspondence” long, awaiting an answer to my request for some materials (notices, éloges, etc.), from which I could prepare something of a biographical nature to append, but I received nothing, at least until too late. In the May number of the “Kew Journal of Botany,” Hooker has reprinted my brief note; but by some accident, the marks of quotation are omitted from the two last paragraphs, which appear as if written by the editor of the “Journal.” ... Believe me to remain, my dear friend and honored colleague, as ever, your sincerely attached, ASA GRAY. TO W. J. HOOKER. CAMBRIDGE, February 5, 1855. MY DEAR SIR WILLIAM,--The inclosed, from our good friend Dr. Short,[29] and the box it advises, came while I was at Washington, from which I have just returned. Mrs. Gray and I have enjoyed our month’s holiday very much; though I was kept busy enough, having to deliver nine lectures in three weeks. We had arranged to have a few days at New York, in which I could work with Dr. Torrey; but the good man was called off to Washington on business just as I left that place, and we crossed en route, and I came on home, in consequence.... I am very glad Mr. Smith was pleased with the live plants I sent. Please remind him that I should like to share in the distribution of seeds this spring. And if I find time to make out a short list, I may ask for some live plants again.... I have a Cereus giganteus six inches high, and I saw several others. They have no hair, and appear very unlike C. senilis.... There is an authentic account in some numbers of “Silliman’s Journal” last year of the size of that prostrate trunk (Wellingtonia-Washingtonia). Mr. Blake, at Washington, told me something of it, but I forget the numbers. I will ask him, as he is a reliable person. But 450 feet is rather too tall. So they would talk about the tree that was felled being 3,000 years old (and took in Lindley), whereas it was not quite 1,300! It appears to grow much faster than S. sempervirens.[30] ... A great loss in Forbes’s death. I have been trembling lest I should hear that Dr. Hooker is chosen to the chair at Edinburgh, which would give him very good pay, I suppose, and he would fill the place well, but it would take him away from special botany, which would be a great pity.... TO A. DE CANDOLLE.