MEMOIR. 85 
being found impracticable, and the publishers receiving little 
encouragement to proceed, it was abruptly closed at the fourth volume 
without its having extended beyond the Dichlamydeae. He shortly 
afterwards entered into an engagement to supply the botanical 
articles of the “ Encyclopzedia Metropolitana,” which he ‘continued 
to do till the close of the work, a great part of the introductory 
treatise having been furnished by him, as well as the articles in the 
alphabetical series, from the middle of the eleventh volume to the end 
of the twelfth. In 1842-3 he was employed by the Board of Woods 
and Forests in naming the trees and shrubs in Kensington Gardens 
and the Parks, by means of which the names of a very considerable 
number of species and varieties of woody plants have become 
familiar to the visitors. He likewise rendered much assistance to 
the late Mr. Loudon in the preparation of the various botanical 
works in which that gentleman was engaged during the last ten or 
twelve years of his life; and the last of his botanical labours was 
the preparation of a supplement to Loudon’s “Encyclopedia of 
Plants,” which made its appearance only a few months before his 
death. He had been suffering at intervals during the last two 
years from disease of the heart, which had latterly prevented him 
from being present at any of our meetings, at which he had for 
many years previously been a constant attendant, having been 
elected an Associate in 1822, and a Fellow in 1831. He died at 
Campden Hill, Kensington, on the 25th of February last [1856], in 
the 58th year of his age. 
The second son surviving to manhood, David, whose acuteness 
was alluded to by Mr. Booth, having been employed at the 
establishment of Messrs. Dickson in Edinburgh, also drifted from 
horticulture, and going to London became an assistant to Mr. 
Lambert, the well-known monographer of the genus Pizus. He 
afterwards became Librarian to the Linnean Society, and wrote 
many papers which appeared in the publications of that Society 
and elsewhere. At the time of his death in 1841 he was Professor 
of Botany at King’s College, London. The following is the 
obituary notice of him from the Proceedings of the Linnean 
Society for May 24th, 1842 :-— 
Daviv Don, Esq., Professor of Botany in King’s College, London, 
and Librarian of this Society, was born in the year 1800, at Forfar, 
where his father, an acute practical botanist, had established a 
nursery and botanic garden. On his father’s being afterwar ds 
