1882. J Temperatures of the Water of the Thames, fyc. 283 



Table IV. — Monthly Mean of the Diurnal Range of the Temperature 

 of the Water of the Thames at Greenwich. 





Month. 







Year. 



January. 



February. 



March. 



April. 



May. 



June. 



July. 



August. 



September. 



| October. 



1 



> 

 



December. 



Sums. 



Means. 























° 













1844 































1845 



0-8 



0-4 



1*0 



ro 



0-5 



0-8 



0"3 



0-4 



0-4 



0-4 



11 



2-1 



9*2 



0'8 



1846 



2-2 



2-7 



1-9 



2-1 



2-8 



1-3 



13 



1-7 



1*5 



1-5 



2*2 



2-6 



23-8 



2-0 



1847 



1-6 



1-5 



0"6 



07 



2-.1 



3 6 



4-1 



1*6 



0-4 



0'4 



0-7 



1*1 



18-4 



1-5 



1848 



ro 



15 



1 - j 



VI 



1-3 



0-9 



1-0 



11 



I'O 



2-9 



2-5 



3-4 



I9'2 



1-6 



1849 



1-6 



1-6 



1-5 



37 



3-0 



2-3 



2'2 



2-1 



2-8 



3'2 



3*1 



3*5 



30-6 



2-5 



1850 



27 



3-1 



3-3 



3-3 



4-2 



4-0 



3-5 



3-4 



3-1 



33 



3*5 



3-4 



40-8 



3-4 



1851 



3-6 



37 



3*5 



3-5 



4-4 



3-8 



Z'O 



2-1 



2-3 



2-0 



2-7 



27 



36 '3 



3-0 



1852 



2-3 



2-7 



2-0 



Z'O 



Z'O 



2-6 



2-7 



3-3 



3-0 



ro 



1*7 



1*5 



26-8 



2-2 



1853 



0-6 



0"9 



2-4 



1-8 



2-5 



2-1 



2-2 



2"5 



2"0 



1*7 



r 5 



1-3 



21*5 



1-8 



1854 



1-0 



1-8 



2-7 



3*4 



3-4 



3-4 



3-1 



3-2 



3-2 



2-9 



2-0 



1'5 



31*6 



2"6 



1855 



2-7 



15 



Z'O 



2"5 



2-6 



3-4 



2-9 



2-1 



3-0 



2'7 



3*2 



27 



31*3 



2-6 



1856 



1*7 



1*9 



1-2 



3-0 



3-0 



3-6 



2-8 



2-6 



2-6 



2-6 



1*5 



' 1-9 



28-4 



2-4 



1857 































1858 



0-7 



0-8 



1-0 



3-2 



3-5 



2-2 



3-0 



2-8 



1-8 



1-3 



0-2 



o-o 



20'5 



1-7 



1859 



o-o 



0-3 



0-5 



0-8 



1-7 



1-9 



1-9 



1-3 



1-3 



1*1 



o-i 



o-o 



io - 9 



0-9 



1860 



0-9 



1-8 



1-8 



1 : 1 



1-6 



1-0 



ro 



ro 



ro 



ro 



rc 



10 



I4 - 2 



1-2 



1861 



1-0 



ro 



1-0 



10 



1-0 



1-0 



ro 



ro 



1-5 



2-0 



5-9 



3'9 



21*3 



1-8 



1862 



3-0 



2*3 



2-8 



2'2 



2-2 



2"2 



2-1 



2-2 



2-2 



2-3 



2-3 



3-0 



28-8 



2-4 



1863 



2-7 



2-5 



2'5 



2-1 



2-2 



2-2 



2'2 



2-2 



2-2 



2*2 



2-2 



2'2 



27 '4 



2-3 



1864 



3-2 



3-2 



2-2 



3-1 



2-5 



1-9 



2-0 



1-9 



2-2 



2*2 



1*3 



1-3 



27-0 



2-3 



1865 



1-6 



1-7 



1-0 



ro 



1-2 



1-0 



0-5 



0-3 



0-5 



0*3 



1*8 



1-3 



I2'2 



1-0 



1866 



2-2 



Z'O 



1-0 



1-2 



ri 



1*2 



0-9 



0-8 



0-7 



1*9 



2*2 



2*3 



7-5 



1*5 



1867 



2-4 



2-4 



2-8 



2-6 



2-1 



1-8 



2-0 



1-9 



1-8 



2*2 



2-2 



2-0 



26'2 



2-2 



1868 



1-6 



1-3 



16 



1-8 



1-5 



1-4 



0-5 



13 



1-1 



1*5 



1-6 



1-8 



17*0 



1-4 



1869 



1-7 



1-8 



1-5 



2-3 



2-1 



1-9 



2-2 



1-6 



1*8 



1-4 



1*4 



2-0 



21*7 



1-8 



1870 































1871 



3'° 



3-5 



3-1 



3-8 



4-1 



3-1 



3-5 



3-0 



3*6 



2*7 



3-3 



2*7 



39'4 



3*3 



1872 



2*2 



2-0 



27 



2-8 



2-2 



2-8 



2-9 



2-5 



2*3 



2-3 



2*4 



2*1 



29-2 



2-4 



1873 



21 



2-0 



2-4 





3-1 



2-5 



2-1 



1-9 



1*9 



2*4 



3-0 



23 



28*4 



2*4 



1874 



2-3 



2-4 



2-7 



3-1 



2-3 



1-8 



1-8 



1-9 



1-8 



1-8 



1-9 



2-1 



25-9 



2-2 



1875 



2-6 



2-0 



1-9 



2-2 



2-4 



1-8 



1-7 



1-6 



1*7 



2*0 



1-8 



1*8 



23'5 



2-0 



1876 



2-2 



1-8 



1-8 



2-7 



2-7 



2-8 



2-5 



2-5 



2*1 



2*4 



2-4 



2-1 



28-0 



2-3 



1877 



2-4 



1-9 



2-3 



2-2 



2-7 



2-5 



2-1 



1-9 



1*7 



2-0 



2*0 



2*1 



25-8 



2-2 



1878 



2-3 



2-1 



2-3 



2-6 



2-3 



2-3 



2-5 



2-5 



2-6 



2-6 



2*3 



25 



28-9 



2-4 



1879 



1-8 



23 



2-3 



27 





3-1 



2-6 



2-8 



2-1 



2'9 



2'5 



2*5 



30*8 



2-6 



Sums 



637 



6 4 '4 



64-8 



75'3 



79'5 



74-2 



69/I 



65-0 



63"2 



65-i 



69-5 



687 



822*5 





Means 



1-9 



2-0 



2-0 



2-3 



2-4 



2-2 



2-1 



2-0 



1*9 



2-0 



2*1 



2-1 





2-1 



During the years 1844, 1857, and 1870 the observations were incomplete, the results for those years 

 have, in consequence, been altogether omitted. The monthly values in different figures are esti- 

 mations, inserted in order to complete the numbers for the particular years in which they occur, 

 for the purpose of taking means. 



