364 
METEOROLOGICA L OBSER VA TIONS. 
For the air temperature at the lower station the values 
given in Dove's Temperature Tables for Umbala^ not far dis- 
tant, and at about the same elevation above the sea, have 
been used, as follows : — 
May ... Mean air 100° 
June ... Temperature ... ... 96 
July 85 
August ... ... ... ... ... 86 
September ... ... ... ... ... 84 
October ... ... ... ... ... 75 
November ... ... ... ... ... 64 
Under these circumstances it was not advisable to make 
any allowance for diurnal range, or for casual departure 
from the mean range of barometer or thermometer. 
It is suggested that the latitude and longitude of the 
principal places should be inserted in the Remark column of 
the register, and the heights which may have been deter- 
mined by trigonometrical survey for any of the places might 
also be given in the remarks with advantage. These data, 
however, could only be furnished with sufficient accuracy 
by some one familiar with the places and with the results of 
the Government Surveys in the North of India. 
R. Strachan. 
December lUJi, 1871. 
