Meteorologicat a Prof. Dewey. 61 
possible. Where accura racy cannot be obtained, an approx- 
imation at least should be given with the results. |The lati- 
— the faire se oe and, if practicable, its longitude al- 
fects the time of this appearance.-— ; | 
will be required in a day, one for the maximum and one for 
the minimum temperature. “This kind of thermometer is not 
6.. If Farenheit’s, or any similar Riainbleenee be used, the 
number of daily observations and the time of making them 
should be the same. This is so obyious that no remark is ne- 
cessary. Difference in latitude will affect the temperature in 
a slight degree indeed when the hours of observation are the 
same. Bu results will be incomparably more’ valuable, 
from observations. 
two reasons. 
-Lihis believed more ‘sadenliinthiire Sininseigisiae 
these hours than at any other set of hours, both in our eown- 
epee te Kempe: 
_ ¥ Inthe year 1924, the pean of the. temperature a sunrise and sun 
a the year, was very p deyrees an the etext of the 
at seven A. tei nd eee ae eae: Sad there little 
rae at in:this latitude ae the temperature at sunrise pga 
must be below the mean temperature of the year. : 
