IV INTORODUCTION. 
terra incoynita by western naturalists has now been brought within the limits of trra cognila 
through Dr. Hayata’s investigations. 
In accordance with the facts above stated and with the authority vested in it, the Imperial 
Academy hereby recognizes that Dr. Hayata has made a great contribution to science and to the 
known natural resources of Japan through the study which for a score of years he has made of 
the flora of Formosa. 
The above statement put forth by the Imperial Academy is really too 
much for me to accept for myself alone; for I cannot forget that it is due to 
the assistance rendered to me by all who have sympathized with me and been 
interested in my work that I have been able to make any contribution at all 
either to science or to my nation. As I now issue this tenth volume some- 
what in the form of a conclusion to the series, I desire to acknowledge the 
help so kindly given to me by so many — teachers, relatives, friends and others 
—— who, one and all, have helped forward the work which has brought me the 
honour of being awarded the Prince Katsurs Commemoration Prize. To 
them are due my most heartfelt thanks of which I beg them to accept this 
expression. ‘To one unknown friend I owe the following letter by which I am 
profoundly touched. He wrote: “T shall take it for granted that you have 
no reason to accept a word of congratulation from a humble fellow whose 
name has probably slipped from your memory. For my part, however, 
nothing would gratify me so much as to have you know that there is a poor 
creature who under his humble roof rejoices at your success.” Who the writer 
may be I do not, know, but somehow the letter recalls my mother who is. 
at rest, and it is hard to restrain the tears. 
In token of my gratitude to all my friends, I have decided to give the 
whole sum which accompanies the Prize (¥en 1,009) for the promotion of 
science, one half to the Toky6 Botanical Society and the other half to the 
Formosan Natural History Society. 
In conclusion, I avail myself of this opportunity to tender my hearty 
thanks to the officials of the Government of Formosa, to whom I am muclr 
indebted for help in the collection of material and in the publication of this. 
work. 
Bunzo Hayata. 
October, 1920, Taihoku and Tokyo. 
