Of the learned societies the more important are the medical (1840), the naturalists' (1869), the juridical (1876), the historical of Nestor the Chronicler (1872), the horticultural (1875), and the dramatic (1879), the archaeological commission (1843), and the society of church archaeology.
In 1829 Lindley, who since 1822 had been assistant secretary to the Horticultural Society, was appointed to the chair of botany in University College, London, which he retained till 1860; he lectured also on botany from 1831 at the Royal Institution, and from 1836 at the Botanic Gardens, Chelsea.
During his professoriate he wrote many scientific and popular works, besides contributing largely to the Botanical Register, of which he was editor for many years, and to the Gardener's Chronicle, in which he had charge of the horticultural department from 1841.
Collections of fruit grown in British Columbia have received premier honours at the competitive exhibitions of the Royal Horticultural Society in London, where their high quality and fine colour have been greatly appreciated.
Among other provincial agencies for Agri imparting information there are farmers' institutes, cultural travelling dairies, live-stock associations, farmers', dairymen's, seed-growers', and fruit-growers' associa- tions tions, and agricultural and horticultural societies.