THE ROYAL SOCIETY, AND AT THE ROYAL OBSERVATORY, GREENWICH. 591 
Table XXIL — Showing the excess of the quarterly and yearly mean temperatures, 
in every year, and the same for groups of years, above the means from all the years. 
Year. 
January, 
February, 
March. 
Group of 
years. 
April, 
May, 
June. 
Group of 
years. 
July, 
August, 
September. 
Group of 
years. 
October, 
November, 
December. 
Group of 
years. 
For the 
year. 
1 
Group of 
years*. 
1771. 
— 5-5 
0 
O 
-3*0 
o 
O 
— 2-8 
o 
— 0°2 
O 
-2°9 
o 
1772. 
— 3-3 
— 2-0 
— 1-2 
+ 1-7 
- D2 
1773. 
-0-6 
-3*0 
-1*7 
-1-5 
-D7 
1774. 
-0-9 
+ 0-6 
— 0-5 
-1-7 
-0-6 
1775. 
+ 3-1 
!>-0-7 
+ 3-4 
^-0-1 
+ 1-3 
^ + 0-2 
— 0-8 
|>-0-2 
+ D7 
|>-0*1 
1776. 
— 1-4 
+ 0-1 
— 0-1 
+ 1-4 
0-0 
1777. 
-0-1 
-1*2 
+ 0-9 
+ 0-2 
-0*1 
1778. 
— 1-5 
+ 2'2 
+ 1*9 
+ 1-1 
+ 0-9 
1779. 
+ 4-2 
J 
+ 2-4 
J 
+ 3-8 
J 
+ 1-3 
H-2-9 
1780. 
-0-6 
+ 0-8 
+ 3-3 
— 1-4 
+ 0-5 
1781. 
+ 1-5 
+ 1-8 
+ 2'3 
+ 0-3 
+ D5 
1782. 
-1-0 
— 3-2 
-2-3 
-4-7 
— 2-8 
1783. 
-0-3 
+ 0-4 
+ 0-9 
— 1-2 
-0-3 
1784. 
1785. 
-5-9 
-4*7 
>-1-5 
-0*4 
+ 0-8 
> 0-0 
-1-7 
-0-6 
i.-0*4 
-4-9 
—2-6 
>-2-4 
-3*2 
-D4 
>-1*1 
1786. 
-2*9 
+ 0-1 
-3*0 
-4*3 
— 2-5 
1787. 
+ 1-5 
-0-9 
— 0-4 
-0-8 
-0-2 
1788. 
0*0 
+ 2-7 
-0-6 
-3-8 
— 0-4 
1789. 
— 2'4 
— 1-4 
J 
— 1-5 
J 
-DO 
J 
-D6 
J 
1790. 
+ 2-8 
-2-0 
— 1*8 
+ 0*1 
-0*2 
- 
1791. 
+ 1-9 
-0-2 
— 0-2 
-2*5 
-0-2 
1792. 
— 0-1 
— M 
-0*7 
+ 0-6 
-0-3 
1793. 
-0-2 
-2-6 
-0*5 
+ 1-9 
— 0-4 
1794. 
1795. 
+ 2-6 
-6-0 
> 0-0 
+ 0-5 
-1*9 
>-1-0 
+ 0*1 
+ 0-8 
>-0-5 
— 0-6 
+ 2-9 
>-0-7 
+ 0-6 
— D1 
>-0*5 
1796. 
+ 3-1 
-0-6 
-0-2 
-4-3 
— 0*5 
1797. 
-2-0 
— 1-8 
— 0-4 
— 0-2 
— D1 
1798. 
+ 0-5 
+ 2-6 
+ 0-3 
— 2*2 
+ 0-3 
1799. 
-2-6 
— 3-2 
— 2-2 
.... 
-2*4 
-2-6 
1800. 
—2-0 
+ 0-4 
+ 2-2 
-0*6 
0-0 
- 
1801. 
+ 2-4 
+ 0-4 
+ 1-2 
-DO 
+ 0-7 
1802. 
-0-5 
0-0 
0-0 
-0-8 
— 0*3 
1803. 
-1-0 
-0-7 
-0*1 
+ 1-3 
-0*1 
1804. 
1805. 
+ 2-2 
+ 0-1 
^ + 0-4 
+ 1-8 
-2*2 
> 0-0 
+ 0-4 
+ 0'6 
> + 0-6 
+ 0-3 
-1-1 
> + 0*1 
+ 1*2 
-0*6 
> + 0-3 
1806. 
+ 2*7 
+ 0-5 
+ 0-5 
+ 5-1 
+ 2*2 
1807. 
-0-4 
+ 0-5 
+ 0-7 
-0-6 
0*0 
1808. 
-1*4 
+ 0-4 
+ 1-8 
— D4 
-0*2 
1809. 
+ 2-4 
-0-7 
J 
-1-2 
> 
0-0 
-0*3 
J 
1810. 
+ 0-2 
— 0‘6 
+ 0-9 
+ D0 
+ 0*4 
1811. 
+ 0-5 
+ 2-1 
-0-3 
+ 3-0 
+ D3 
1812. 
+ 0-4 
-3-2 
—2-6 
-D9 
— D8 
1813. 
+ 1-4 
-1-6 
— 2-2 
— 2-0 
— D1 
1814. 
—6-2 
> + 0-2 
— 2-1 
>-0-8 
— 1-2 
^-0-4 
— 0-4 
>-0-1 
-2*5 
>-0*2 
1815. 
+ 1-1 
+ 1-0 
+ 1-5 
-DO 
+ 0*7 
1816. 
-0-7 
-3*7 
-2-3 
-0-8 
-D9 
1817. 
+ 2-8 
— 1'8 
— 3-2 
-0-4 
-0*6 
1818. 
+ 0-5 
+ 1-6 
+ 4-1 
+ 3-8 
+ 2*5 
1819. 
+ 3-1 
+ 0-8 
+ 1-8 
-D6 
+ D0 
