MADE IN THE GARDEN OF THE SOCIETY. 141 



Geothermometrical Observations. 



(The next page is a continuation of Tables in vol. iii., exhibit- 

 ing the temperature of the earth at 1 foot deep, and at 2 feet 

 deep, in contrast witli that of the air in the shade. In ex- 

 planation of the meaning of the tables we may take, for example, 

 the month of January, when it will be found that 



Tlie temperature of the earth was — 



Highest on the 5th .... =\f^o''Wr\^r^' 

 ® \43° at 2 feet deep. 



Lowest on the 30th .... ={ 37a ft 2 feet deep.' 



Mean temperature of the earth, de- 1 _ j 37 * 92° at 1 foot deep, 

 duced from 31 daily observations j "" |40- 13° at 2 feet deep. 



The temperature of the air in the day was — ■ 



Highest on the 3rd = 51°. 



Lowest on the 26th = 27°. 



The temperature of the air in the night was — 



Highest on the 3rd = 41°. 



Lowest on the 28th = 17°. 



Mean maximum temperature of all the days . . = 39 '12°. 

 Mean minimum temperature of all the nights . . = 28*32°. 

 Mean temperature of the month, deduced from these = 33 * 72°. 



From the above example the whole of the Table on the fol- 

 lowing page will be readily understood.) 



General Observations. 



January. — E. and N.E. winds were prevalent for nearly half 

 the days in the month, and the temperature was in consequence 

 generally low ; yet there were no intense frosts. The amount 

 of rain was below the average. The 4th, 15th, and 16th were 

 exceedingly fine. Some snow fell towards the end of the 

 month. 



February. — The mean temperature was nearly 3i degrees 

 above the average for the month. The lowest indication of the 

 common thermometer was only 7 degrees below freezing. The 

 wind was mostly from vS.W. The amount of raili was nearly 

 double the usual quantity. Much fell on the 10th and 26ih ; 

 the latter was boisterous ; and there was a heavy storm of rain 

 and hail on the afternoon of the 27th. 



March. — Nearly an average temperature was maintained, and 

 the amount of rain was more than double the usual quantity for 



