31 
Warm Years 
o 
Cold Years 
O 
In 1849 too high by 
0-2 
In 1855 too low by 2 - 7 
„ 1852 
1*0 
„ 1856 
0-7 
t'- 
iO 
00 
1-1 
00 
kC 
00 
0-5 
„ 1859 
0-7 
„ 1860 
2-8 
„ 1862 
0-1 
„ 1861 
0-6 
1863 
1-0 
„ 1864 
1-2 
„ 1865 
0-4 
„ 1867 
0-7 
„ 1866 
0-5 
„ 1868 
2-4 
„ 1869 
0*1 
The year 1839 was of the average temperature. 
The warm years 1828, 1831, 1834, and 1868 were all 2°£ above the 
average : the year of greatest excess was 1868. 
The cold years 1829, 1838, 1855, and 1860 were from 2 o, 0 to 2°-8 
below the "average: the year of greatest deficiency was 1860. 
Thus in 44 years, the temperature of 23 have been above ; 20 below, 
and one of the average value. 
It is remarkable that from 1826 to 1835, with the single exception 
of 1829, every year was above the average; and those from 1836 to 
1841, with the exception of 1839, which was just the average, all were 
below ; and since then the only group of four or five years together of 
the same character in this respect were those from 1850 to 1856 
(with the exception of 1852), which were below their averages. 
'Since the year 1856, warm and cold years have been almost alternate. 
