having been lost and very few new ones added. . . . /.The 

 tender exotic species were more or less of them growing 

 without any arrangement in different houses, and un- 

 named, their number amounting to about 40. In 1825 I 

 arranged the tropical species in a group at the end of the 

 then lean-to house . . . now included in the tropical fern 

 house, the area they occupied being 6 ft. by 12 ft. These 

 formed the nucleus of the now great collection. They 

 were successively added to by importations of living 

 plants, as also plants raised from spores obtained from 

 herbarium specimens." 



" The collection continued yearly to increase, and in 

 1846 [1845] I drew up a list of the collection, which was 

 published in an appendix to the Botanical Magazine, for 

 that year ; the number then amounted to 400 [378] species. 

 This in 1857 [1856] was followed by another list, entitled 

 ' Catalogue of Cultivated Ferns,' in which 600 [504] species 

 are enumerated." 



The principal books published by Mr. Smith are his 

 Ferns, British and Foreign, issued in 1866, which con- 

 tains a classified list of all the species then known in 

 cultivation, full directions for the cultivation of ferns of 

 the different climatic types and by far the most complete 

 history of their gradual introduction which has ever 

 appeared in print, and his Historia Filicum, issued in 

 1875, which contains woodcuts of 220 types and gives a 

 full exposition of his views on fern classification. 



In 1868 the last published list was prepared by Mr. J. G. 

 Baker. It enumerates 802 species and varieties of ferns 

 and 48 of fern allies. 



