PREFACE. 
ix. 
most cases, where personal names only have been applied, 
a properly descriptive one has been allotted, e.g . , A. f. f. 
Edwardsii, see congestum minus. 
The chapter on Fern crossing and hybridising appeared 
originally in the “Journal of the Royal Horticultural Society,’’ and 
by the courtesy of the Editor it is reproduced with the illustra- 
tions. For the benefit of those who may desire to pursue- the 
study of Ferns beyond the popular limits, an appendix has been 
added, treating of the reproductive phenomena, normal and 
abnormal, with reprints of papers given before the Linnaean 
Society, and republished by permission of the Council. 
Finally, the Editor’s best thanks are due to those members 
of the Committee who have assisted him, and particularly to 
Mr. W. H Phillips for his data relating to Colonel A. M. Jones’ 
Nature Prints, to Dr. F. W. Stansfield, who has revised 
the eventual compilation, and thus by his great experience 
rendered it at once trustworthy and valuable as a descriptive 
index of the best forms extant at the end of the nineteenth 
century, and to those who have kindly furnished illustrative 
photographs. 
CHAS. T. DRUERY, F.L.S., V.M H. 
{President of the British Pteridological Society.) 
