126 BOTANICAL MAGAZINE. [Vol. xvnr. 



EDITORS' NOTES. 



In the present magazine we continued to publish the original works 

 ooth in Japanese and European. The articles in the former language 

 have hitherto been mostly without resume in a European language. 



We believe that the articles in Japanese, in spite of many interesting 

 subjects are related there, have been almost always neglected by the foreign 

 readers owing to the unfamiliarity of the language. The number of our 

 Botanical Magazine distributed abroad is not less at present. Some of 

 the readers have written to the authors of the Japanese articles being 

 anxious to know what were treated in them. 



In and after the present issue we newly established this column wherein 

 the extracted translation or the resume of the articles in Japanese will be 

 given from time to time. Some of the miscellaneous, which might interest 

 the readers will also be introduced here. 



H. Hattoki: Ueber die Farbstoffbiidumj bel Bacillus Jiuoresceus 

 liquifucieus. (vol. XVI II. No. 206. pp. 47-60). The culture solutions 

 used in the study were composed of Asparagin 0.2 gr , Dipotassium phos- 

 phate 0.1 gr., Water 100 c.c, plus Sulphates of various concentrations. The 

 conclusion at the end of the study is as follows : — 



1. The growth of Bacteria is checked by Copper or Iron-ion at the 

 concentration of I0 -2 gr. mol. At the concentration of 10~ s gr. mol. or less 

 the poisoning reaction is not distinct, but the formation of the colouring 

 stoff is not accelerated. 



2. Sodium, Potassium or Ammonium-ion at the concentration of 10 _1 

 gr. mol. has no any effect on the growth of Bacteria. It scarcely accele- 

 rates the colouring stoff formation. 



3. Zinc or Magnesium-ion aeeelarates the colouring stolf formation in 

 a great degree. The optimum of the concentration is 10~ :i gr. mol. or less 

 in the former, and 10~ 2 gr. mol. or less in the latter. 



4. The effect of SO.-iou is not distinct upon the colouring stoff for- 

 mation ; phosphate-ion, on the contrary, has considerable power to accelerate 

 the formation. 



Y. Yabk: On Some Orchid /rum Korea, (vol. XVIII. No. 206 pp. 

 60-62). The writer enumerates 23 species of Orchidcce from Corea 



