IV INTCBODUCTION. 



tfirn in^-nqmla by wcBtern nfitnrulisls lins now been brought wdthin the limits o£ tirra cognUa 

 Ihrough l)r. Hayata's investigations. 



In ft(«ortlnnce ■vvith the fiicts above stated and with the authority vested in it, the Imperiftl 

 Aeftdeniy hereby recognizes that Dr. Hayata hixs matle a great contrib\ition to science and to the 

 knwn natural resources ot Jaimn through the study which £or a score o£ years he has made of 

 the flora of Formosa. 



The above statement put fortli by tlie Imperial Academy is really too 

 much for me to aocept for myself aloue ; for I cannot forget that it is due to 

 the assistance rendered to me by all who have sympatliized with me and been 

 interested in my work tliat 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 conchision to the series, I desire to acknowledge the 

 help so kindly given to me by so many — tetichers, relatives, friends and othei-a 

 — who, oue and all, have helped forward the work which Ims brought me tha 

 houout of l)eiug awarded the Prince KATSUiiA. Commemoration Prize. To 

 them are due my most heartfelt tlianks of wliich I beg them to accepb tlii* 

 expression. To one uukuown friend I owe the following letter by which I aia 

 profouudly touched. He wrote : " I shall take it for granted tha t you have 

 no reasou to accept a word of congratulation from a humble felloAv whose 

 uame has probably shpped from your memory. For my piirt, Iiowever, 

 uothing would gi"atify me so much as to have you kuovv that there is a poor 

 creature who under liis humble roof rejoices at your success." Who tha writer 

 may be I do not know, but somehow the letter recalls my tnother 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 accompauies the Prize (¥eu 1,000) for the promotiou of 

 science, one Imlf to the Tokyo Botanical Society aud the other half to the 

 Formosan Natm-al History Society. 



In conclusion, I avail mjy-self of this opportimity to tender my hearty 

 thanks to the officials of the Goverumeut of Formosa, to whom I am much 

 iudebted for help in the collection of material aud iu the liubUcatiou of this 

 work. 



BuNZO Hayata. 

 October, 1920, Taihoku and TOkyo. 



