D 
Ze PREFACE, 
Indian specimens presented to me in 1829 by the 
Jate Dr. Wallich, which led to my commencing a 
Fern Herbarium, that first received a special addi- 
tion in the form of a collection of Jamaica Ferns, 
collected in that island by Mr. Robert Heward. 
In 1841 I purchased a set of the great collection 
of Ferns made in the Philippine Islands by Mr, Hugh 
Cuming ; of them I drew up a list, published in 
Hooker’s “Journal of Botany.” I then wrote a 
Memoir, entitled, “An Arrangement and Definition of 
j the Genera of Ferns,” which was read before the 
| Linnean Society, and published in Hooker’s “ Journal 
lof Botany for 1841-42.” In 1949 Hooker and Bauer’s — 
“Genera Filicum? was completed, wherein I described 
twenty new genera. : 
Collections of dried specimens were occasionally — 
placed in my hands for naming, among which may 1 
{ be mentioned Schomburgh’s “Ferns of British Guiana,” 
published in Hooker’s “Journal of Botany” for 1842, 
The “Ferns of New Zealand,” in Dr. Hooker’s “ Flora 
iof New Zealand,” in 1854, Ferns collected during 
3 the voyage of the Surveying ship “Herald” by Dr, : 
| Seemann, contained in the volume of the Botany of 
that voyage in 1854, I also drew up a list of the : 
great collection of Ferns made in India by Drs, ` 
Hooker and Thomson, : * 
