370 



APPENDIX. 



Mean variation N. E. Monsoon, Kerr's Journal 25°. 5. Mr. Bletterman's, 11 years, 25°.9. 

 S. W. „ „ 13°.5. „ „ 13°.9. 



Temperature at Japan. 



The following accounts of the temperature of the seasons 

 at Nangasacki in Japan are extracted from : — 



1. French edition of Thunberg's Japan, edited by E. 

 Langles, vol. iii. pp. 174 — 178. 



2. lb. vol. iii. pp. 188 — 193, taken from the Memoirs 

 of the Batavian Society, in the year 1779. 



3. Yon Siebold's Voyage au Japan, p. 326. 



Yon Siebold also observes, that " The rains in the 

 Japanese Islands are more frequent in June, July, and 

 November, than at other times of the year. The rainy 

 season takes place during the first two of these months; 

 and in April and May a dense fog, common to these islands, 

 not unfrequently envelopes them for days together." 



It may be advisable here to state, that a certain correc- 

 tion must be made in the results extracted from the 

 Canton and Macao Meteorological Journals, the general 

 temperature being somewhat too high. I have not quoted 

 M. Richnet's Journal, but to show the errors to which such 



