36 REV. T. MACKERETH ON THE MEAN TEMPERATURES 



will be seen that the coldest winters of the last 29 years 

 were in 1854-55, 1859-60, 1870-71, and in 1878-79, and 

 that the present winter is colder than the coldest of the 

 preceding, viz. 1854-55, by f"j or 1 2 per cent. The mean 

 temperature of the winter months for 29 years is 38°7. 

 And whilst the winter of 1854-55 was f-b or a little over 

 9 per cent, below the average winter-temperature, the 

 present winter is 7°-3 or 19 per cent, below the average. 



The accompanying diagram sets forth the ratio of all the 

 winters from 1850-51 : — 



- 



(D 



T 



ca 







10 



to 



00 



o 

 to 



CO 



in 



(0 

 CO 



CO n 



I I 



vi CO 



00 09 



■■■■■■■■■■■■■■■■■■■■■■■■■■■■a 



WINTER 



o 



MEAN 



■DHBIBHBHaHHHHHIBKBaHnHHHHH! 

 HBBBiaHBBBBaBBBBBiliaaHBBBaKaH 

 ■■■BIBHBBBBnflBBMBMnBBHBBHnnBB 

 5B5B5SBn«BBF4nBnK«fll1BBBHaBrJHBB 

 KBBIBIKflmVaMaiJHHiimKaKHflBllI 

 ■BHBflBIBBIlflfiHBflriBflBWBilBBBaaBlll 



■■■iRiHBiwrjHBanaaaaariiaaaaaiii 

 BBBKiriBHBBicflHaaaaaHaBiMBaaaaaiii 



■■■■■■■■■■iBaaBBavaanaBBBBwi 



YEARLY 



480 

 MEAN 



SUHMER 







58-i 



MEAN 



■■■■■■■iBBBBBBaBBBHBBBBBBBai 

 ■■■■■^^■■■■■■■■■fl|~~ 

 ■■RSirJKBHBKBBSHHI 



HI^KBISflBKBBBaaBK&ai 



IMMRMBBI 



IfiflHHKSIBWWKinifi! 



iMkiaariar 



IBBHI 



ai 



to 



00 



r* 



t* 



CO 



00 



