198 THE BOTANICAL MAGAZINE. [ vol. xxm. no. 2 7j. 



" I have the honor to answer you that the tree in question 

 thrives perfectly well throughout the entire prefecture and is 

 used as hedges and otherwise. A specimen in the botanical 

 garden of our school grows luxuriantly and needs no protection 

 whatever." 



(10) Letter from Mr. Kitazawa in Toyama Agricultural 

 School. 



" I am very glad to know that you are very well and have 

 the honor to answer you that the trifoliata orange grows well 

 without protection even in the mountainous parts of Oiwa 

 village in Nakaniikawa district. In the city of Toj'ama and its 

 vicinity it is cultivated everywhere. 



(11) Letter from Mr. Shiro Kumagaye in the Hakodate 

 Branch Office of the Imperial Household Department. 



" I have tried to get some information about the matter in 



question from plantgrowers, seedmerchants etc. but in vain. 

 According to my own experiences, here Citrus trifoliata does 

 not thrive without suitable protection during the cold season. 

 Of course it germinates and grows to a young plant during 

 warmer months of the } r ear but perishes in winter when it is 

 exposed to the cold weather. 



" Two cases of actual occurrence may be mentioned as 

 references to my statements. 



1). An old man who lived in Aoyagi-street in Hakodate, 

 Hokkaido, procured some trifoliata orange .shoots (3 years old) 

 from Echigo province with a view to utilize them as grafting- 

 stocks and planted them outside. During the summer season 

 the growth went on as usual but in winter all the exposed 

 portions of the stem and branches perished, while the portion 

 under snow remained uninjured. 



In this condition they continued to grow 4 years but at 

 last they all perished from the lack of suitable protection 

 caused by the death of the old master who have always taken 

 care of these trees on the one hand and on the other hand by 

 the wounds inflicted bj r the careless treatment of the timber 

 piled up near the plantation. I think that in this special case, 

 unless the plants were not sheltered by the dwelling house of 



