284 temperatures of the Water of the Thames, fyc. [Nov. 23, 



Table V. — Monthly Mean of the Diurnal Range of Atmospheric 

 Temperature at the Royal Observatory, Greenwich. 





Month. 







Tear. 



>> 

















iber. 





& 



ber. 



Sums. 







muar 



cS 



f-. 

 ,Q 



arch. 







a* 



a 



>. 



bS) 



1 



ctobe 



ovem 



ecem 





'eans. 







[2 









1-3 



1-5 



< 



in 









p 

















° 



O 







O 























1844 































1845 



7-2 



9-4 



15-1 



15-8 



13-9 



18-0 



14-1 



14-5 



16 - 9 



13-6 



10-7 



io-o 



159-2 



13*3 



1846 



7-0 



7-8 



12-3 



13-2 



19-0 



23-3 



20-8 



16-5 



19-0 



96 



7-3 



6-3 



162*1 



13*5 



1847 



7-6 



10-1 



15'9 



15-3 



192 



14-4 



21-5 



17-7 



15 - 6 



12-0 



11-0 



6-8 



107 1 



13-9 



1848 



8-1 



10-9 



15-0 



19-3 



27-0 



18-2 



20-6 



17-1 



20-1 



14-1 



13-4 



9-9 



!93'7 



16-1 



1849 



11:6 



145 



13-2 



16-9 



15-4 



20-6 



24-5 



19-7 



16 - 6 



15-4 



12-5 



9-2 



1 90' 1 



15-8 



1850 



8-8 



11-4 



16-2 



17-3 



18-9 



23-2 



19-5 



18-9 



17'0 



14-0 



11-4 



8-5 



185*1 



15*4 



1851 



10-3 



13-4 



12-3 



16-7 



20-3 



21-6 



17-9 



19-8 



20 - 2 



13-1 



11-3 



8-1 



185-0 



15*4 



1852 



11:7 



13-3 



16-3 



23-6 



18-9 



18-4 



25-5 



18-6 



16-5 



14-6 



9-7 



9-2 



196-3 



16*4 



1853 



8-7 



10-6 



16-3 



14-1 



20-0 



19-0 



16-1 



18-1 



18 - 6 



14-7 



12-4 



8-9 



r 77'5 



14*8 



1854 



11-2 



15-5 



19-5 



22-4 



20-1 



19-0 



20-6 



22-8 



25-3 



17-4 



12-1 



10-2 



2l6'l 



18*0 



1855 



8-1 



10-0 



14-5 



21-6 



171 



20-8 



19-1 



19-5 



19-8 



12-5 



9-3 



9-8 



182*1 



15*2 



1856 



8-6 



10-0 



13-8 



18-5 



16-6 



20-8 



20-8 



18-9 



15-9 



13-9 



12-3 



9-1 



179 2 



14*9 



1857 































1858 



11-6 



11-5 



18-6 



19-7 



21-5 



25-1 



22-5 



22-8 



18-8 



15-6 



11-7 



8-2 



207 



17*3 



1859 



10-5 



157 



137 



17-7 



19-6 



21-0 



24-4 



21-1 



17 - 9 



13-9 



13-3 



io-o 



198*8 



1-6-6 



1860 



9-8 



14-1 



13-9 



19-1 



19-9 



16-5 



19-0 



15-6 



18'2 



14-1 



10-6 



7-9 



178*7 



14*9 



1861 



11-0 



111 



16-1 



18-7 



22-0 



19-7 



18-9 



21-8 



19'5 



15-8 



13-2 



10-5 



198*3 



16*5 



1862 



94 



10-1 



11-7 



16-8 



18-5 



18-i 



20-5 



19-1 



17'0 



14-4 



11-1 



9-5 



176*2 



14-7 



1863 



10-5 



13-8 



19-0 



20-8 



21-9 



19-1 



25-3 



19-5 



17-0 



13-0 



11-3 



10-9 



202 'i 



16-8 



1864 



9-9 



11-1 



15-8 



16-1 



19-5 



20-8 



25-6 



23-5 



17'8 



14-2 



12-1 



9-2 



195*6 



16-3 



1865 



8-6 



10-6 



12-7 



24-9 



20-8 



24-1 



21-3 



19-5 



23-0 



16-9 



13-8 



9-1 



205*3 



17-1 



1866 



112 



12-5 



14-0 



18-5 



21-0 



21-2 



19-8 



17-0 



13'1 



13-5 



12-2 



11-3 



185*3 



15-4 



1867 



10-1 



11-0 



12-7 



16-6 



20-2 



20-7 



19-9 



20-3 



17-7 



15-2 



11-8 



io-o 



186*2 



15-5 



1868 



9-0 



13-1 



16-8 



18-5 



243 



25-3 



27-3 



21-0 



18-2 



17-2 



10-4 



9-7 



2io*8 



17-6 



1869 



10-2 



12-3 



12-6 



19-9 



17-7 



20-7 



23-2 



20-1 



15-2 



15-1 



11-0 



8-7 



IoO 7 



15-6 



1870 































1871 



8 - 



13-2 



17'2 



17-8 



22-2 



18-1 



19-6 



25-4 



16-8 



15'5 



10"9 



8'3 



193*0 



16'1 



1872 



9-3 



12-6 



15-9 



20-9 



19-2 



21-9 



22-5 



20-7 



18-9 



15-1 



9-6 



8-4 



195-0 



16-2 



1873 



8-6 



8-7 



16-6 



19-7 



19-7 



19-0 



23-5 



19-6 



19-4 



16-1 



10-8 



10-7 



192-4 



16-0 



1874 



11-2 



115 



15-9 



21-4 



23-4 



21-5 



25-4 



21-7 



18-0 



13-5 



12-7 



7-9 



204-1 



17*0 



1875 



9-4 



9-2 



13-9 



20-4 



22'7 



20-0 



17-8 



20-0 



18-5 



12-7 



9-7 



8-9 



183-2 



15*3 



1876 



11-3 



10-6 



14-5 



19-5 



22*1 



21-7 



24-9 



23-4 



16-8 



12-8 



10-1 



7-7 



I95-4 



16*3 



1877 



11-7 



11-2 



14-0 



15-2 



17-0 



25-5 



20-5 



19-0 



19-3 



16-8 



12-1 



9-6 



191-9 



16*0 



1878 



9-7 



9-6 



14-7 



17-5 



17-5 



20-4 



19-7 



17-3 



18-6 



12-7 



9-1 



8-9 



I75'7 



146 



1879 



6-2 



87 



14-9 



16-1 



18-2 



17-2 



16-0 



17-1 



15-0 



12-8 



10-6 



9-9 



162-7 



13*6 



Sums 



3i6-i 



379-1 



495-6 



610-5 



655-3 



674-9 



698-6 



6+7-6 



596-2 



471-8 



371-5 



3or3 



6218-5 





Means 



9-6 



11-5 



15-0 



18-5 



19-9 



20-5 



21-2 



19-6 



18 1 



14*3 



11-3 



9-1 





15*7 



The results for the years 1844, 1857, and 1870, have been omitted, in order to render the table 

 entirely comparative with that giving ranges of Thames temperature. 



