94 ILLUSTRATIONS OF INDIAN BOTANY. 
TABLE FOR SADIYA. 
Jan. Feb. Mar. Apr. May June July Aug. Sep. Oct. Nov. Dee. 
os ios oo ee ee ee es 8 BS 8 7 0 
Mean, 
Minima. 
Means. 54 56-7 62-5 70 74-2 80 79-7 80-5 80-5 74-7 10.7 
‘ 47.5 535 56 66:5 Yo 76-5 “76° 77° 76 69-5 64-5 0 
Mean annual temperature 67—2. 
‘Taking the means of the tables of Mr. Reeves and of Mr. Davis, the mean annual tem- 
perature of Canton will be very nearly 70: the mean of the four hottest months in the year 
82-2, and of the four coldest months 54. 
"he mean annual heat of Sadiya, in upper Assam, will be 67-2. 
The mean temperature of the four hottest months will be 80, and of the four coldest 
months 57-8. 
Canton. Sadiya. 
Mean annual temperature, 0 67-2 
Mean temperature of 4 hottest months, 7 82-2 80 
coldest months, 54 57-8 
The greatest degree of cold which, so far as I know, has occurred at Sadiya, was in 
January, 1837, when Major White observed it on one occasion at 6 A.M. to be so low as 32,. 
On another occasion it fell to 37 ; 42° is not uncommon. 
months was in 1836, 92°. 
this at Gowahatti, (90 bein 
and situation, the contrary would be supposed to take place. 
coldest month of the year; August and Se 
ly separated countr 
Mr. CcClelland describes 
by avast river, fed by 5 or 6 others, the least of which | 
: gt , nse vapours arise from the Bramaputra about day-light, and 
continue to increase until 8 A. M. when they begin slowly to icone They are ss drifted 
ps the northern ace to what I have already stated regarding the absence of the tea plant | 
i hese mists are attributed to the inequality of temperature eden b reviver sulk 
ee per - between the river @ 
— are that of the former amounting to ent 15° higher ‘hat the Titer, hence the 
Pour rising from it, becomes partially condensed and has the effect of raising and equalizing 
