282 Sir G. B. Airy. On the [Nov. 23, 



Table III. — Monthly Mean Excess of Thames Temperatnre at Green- 

 wich, over Atmospheric Temperature at Royal Observatory, Green- 

 wich. 



Month. 



Year 











































I 









Sums. 









January. 





cS 

 **3 





J March. 





| April. 





1 





June. 





July. 





August. 





Septemb! 





October. 





Novembe 





Deceinbc 







Means. 







o 





o 









































































1844 

























































1845 



+ 



ri 



+ 



1-6 



+ 



1*8 



4- 



1*0 



+ 



35 



4- 



2"0 



4- 



3"8 



4- 



2 - 8 



4- 



2"9 



+ 



2*2 



4- 



1*1 



_ 



0*5 



4- 



23'3 



4-1*9 



1846 



_ 



1-4 



- 



0-2 



+ 



3*1 



+ 



3*2 



+ 



3-7 



4- 



4 - 8 



- 



0-9 



4- 



3-7 



4- 



2"6 



4- 



2-o 



+ 



2*6 



+ 



C*8 



+ 



24*o 



+ 2*0 



1847 



+ 



0-8 



+ 



2"2 



+ 



0*4 



+ 



0*6 



+ 



1-8 



4- 



5"4 



+ 



2 - 3 



4- 



3-4 



4- 



1*3 



4- 



0*2 



4- 



0*5 



4- 



0*2 



4- 



18*6 



+ 1*6 



1848 



- 



0*3 



- 



1-3 



+ 



l'O 



+ 



2*6 



+ 



56 



4- 



2*9 



4- 



3 - l 



4- 



2-9 



4- 





+ 



1'7 



_ 



o - 5 



_ 



0*2 



+ 



2o*o 



4-1*7 



1849 



- 



- 7 



+ 



0-2 



+ 



2"0 



+ 



1"6 



4- 



2-3 



4- 



5'5 



4- 



3'9 



- 



0'8 



+ 



0"8 



- 



1'4 



4- 



1*5 



— 



0*8 



4- 



14* r 



4-12 



1850 



_ 



1*6 



- 



3-0 



- 



0"6 



- 



0*3 



+ 



0-4 



4- 



2*1 



4- 



1'2 



4- 



2'3 



4- 



1"2 



4- 



0'9 



+ 



0*2 



- 



1*8 





l'O 



+ 0*1 



1851 



_ 



1*3 



- 



0*6 



- 



1*1 



+ 



4*1 



+ 



2-3 



4- 



2"5 



4- 



3-0 



+ 



2 - 6 



4- 



2"8 



4- 



2"0 



4- 



3*0 



+ 



1*3 



4- 



20*6 



+ 1*7 



1852 



— 



2-0 



+ 



0-3 



- 



0"3 



+ 



1'5 



+ 



2-5 



4- 



1*5 



4- 



ri 



4- 



2*5 



4- 



3 - 4 



- 



1"6 



_ 



0*8 



- 



1*8 



4- 



6*3 



+ 0*5 



1853 



+ 



2"3 



+ 



3-0 



+ 



2*1 



+ 



1*9 



4- 



2-5 



4- 



2*4 



+ 



2'0 



4- 



2*0 



4- 



Z'O 



4- 



0*8 



4- 



3-0 



4- 



4*3 



+ 



28*3 



+ 2*4 



1854 



_ 



0-2 



+ 



0-6 



- 



0*1 



+ 



1*9 



+ 



2-5 



4- 



l'l 



4- 



2*9 



4- 



0-5 



4- 



3-4 



4- 



3 - 



4- 



4*4 



- 



0*8 



4- 



19*2 



+ 1*6 



1855 



+ 



7-8 



+ 



5-6 



+ 



3"o 



+ 



2*0 



+ 



1-6 



+ 



0'8 



4- 



2 - 7 



+ 



2-9 



4- 



3*0 



4- 



4" 3 



4- 



2*2 





2*0 



+ 



37-9 



+ 3*2 



1856 



+ 



2'0 



- 



0-7 



+ 



2*5 



+ 



3*8 



4- 



2-2 



4- 



2-9 



4- 



1*3 



+ 



3 - l 



+ 



1*1 



4- 



2*6 



4- 



4*1 



+ 



0*8 



4- 



25'7 



+ 2*1 



1857 

























































1858 



+ 



1*4 



+ 



3-3 



- 



2*5 



+ 



1*6 



4- 



l'l 



+ 



2-2 



4- 



l - 8 



+ 



1*7 



4- 



0*8 



+ 



4 - 7 



4- 



2*3 



+ 



1*6 



4- 



20*0 



+ 1*7 



1859 



+ 



1*0 



- 



1-6 



+ 



1-7 



+ 



1*2 



+ 



0-1 



4- 



2-1 



4- 



2-1 



4- 



2 - 4 



4- 



3"1 



4- 



3*6 



4- 



4*4 



4- 



1*8 



4- 



21*9 



+ 1*8 j 



1860 



+ 



1*4 



- 



o-i 



+ 



- 6 



+ 



1'2 



+ 



1-3 



+ 



2-0 



+ 



1-9 



4- 



T6 



4- 



3 - 3 



4- 



0'7 



4- 



4*5 



4- 



2*1 



4- 



20*5 



+ 1-7 j 



1861 



— 



- 5 



- 



1-0 



- 



- l 



+ 



3*5 



- 



0-5 



4- 



2-2 



4- 



2 - l 



+ 



- 9 



4- 



1*7 



4- 



2 - 9 



4- 



3*0 



4- 



0*5 



4- 



!4'7 



+ 1*2 | 



1862 



+ 



1*8 



+ 



2 "2 



+ 



ri 



+ 



0*9 



4- 



0-9 



+ 



1-9 



4- 



1-0 



4- 



3-0 



4- 



1*1 



4- 



2*4 



4- 



2*8 



- 



0*1 



4- 



19*0 



+ 1*6 ! 



1863 



— 



0-5 



+ 



0-5 



+ 



0*9 



+ 



2"0 



4- 



14 



4- 





4- 



4'4 



4- 



2-3 



4- 



6-1 



4- 



2 - 6 



+ 



2*6 



+ 



1*8 



4- 



26*8 



+ 2*2 j 



1864 



+ 



2-6 



+ 



0-8 



+ 



1-4 



+ 



2-4 



4- 



4-1 



4- 



1-5 



4- 



0-2 



4- 



3-7 



+ 



2-7 



4- 



1-3 



4- 



1*0 



4- 



1*7 



+ 



23-4 



+ 2*0 j 



1865 



+ 



1-4 



+ 



11 



+ 



2*2 



- 



0-7 



4- 



3-4 



4- 



3-7 



4- 



1-9 



4- 



1-8 



4- 



0-9 



4 



2-7 



- 



1*8 



4- 



0*7 



4- 



I7-3 



+ 1*4 j 



1866 



+ 



0-3 





o*o 



— 



0-7 



+ 



0-5 



4- 



0-5 



+ 



0-2 



4- 



2-6 



4r 



0-8 



4- 



0-3 



4- 



3-0 



4- 



1*8 



+ 



1*8 



+ 



in 



+ 0*9 



1867 



— 



2-0 



- 



0-2 



- 



0-7 



- 



1-0 



4- 



o-i 



4- 



1-8 



4- 



2-9 



- 



0-6 



4- 



1-3 



- 



0-3 



'+ 



2*3 



_ 



11 



4- 



2"5 



+ 0*2 ! 



1868 



- 



1-2 



- 



1-7 



+ 



0-5 



- 



o-i 



4- 



0-9 





o-o 



- 



1-0 



- 



0-2 



+ 



0-9 



+ 



2-1 



+ 



0*8 



-■ 



11 





o*i 



0*0 



1869 





11 



+ 



0'5 



+ 



1-2 





1-6 



4- 



0-8 



4- 



0-2 





1-2 



4- 



0-7 





3-1 



+ 





+ 



2*2 





0*9 





0*1 



0*0 



1870 

























































1871 



+ 



2*o 





2*3 





0-2 





0-4 



4- 



1-4 



4- 



1-0 



4- 



0-5 





0-9 



+ 



2-8 



+ 



2-0 



+ 



4*8 





1*5 



4- 



9-2 



+ 0*8 



1872 





1-6 





1-5 



+ 



1-9 



+ 



0*2 



+ 



to 



4- 



0-8 



4- 



2-0 



4- 



H 



4- 



2-5 



4- 



2-1 



+ 



0*3 





1*2 



4- 



10*4 



+ 0*9 



1873 



+ 



0-4 



+ 



1-8 





0-8 



+ 



1-0 



+ 



1-8 



4- 



0-3 



4- 



0-9 



4- 



1-9 



4- 



1-5 



4- 



5-8 



+ 



0*2 



4- 



2*3 



4- 



16*6 



+ 1*4 



1874 





0-5 



+ 



1-1 





0-7 





0-3 



4- 



1-6 



+ 



3-2 



+ 



11 



+ 



» 



+ 



1-4 



4- 



2-0 



+ 



4*0 



4- 



3*8 



4- 



18*2 



+ 1*5 



1875 





1-5 



+ 



2-8 



+ 



0-5 



+ 



1-3 



+ 



1-5 



4- 



2-4 



4- 





+ 



.2-1 



4- 



2-5 



+ 



2-5 



+ 



3*1 





1*0 



4- 



18*9 



+ 1*6 



1876 



+ 



2-1 





0-3 



+ 



0-6 



+ 



1-9 



4- 



1-9 



+ 



1-4 



4- 



0-8 



4- 



2*0 



4- 



2-1 



4- 



3-2 



+ 



1*4 





0*7 



+ 16*4 



+ 1*4 



1877 



+ 



0-9 



+ 



0-8 



+ 



PI 



+ 



3'0 



+ 



1-1 



+ 



0-8 



4- 



2-8 



4- 



2*2 



4- 



4-5 



4- 



3-0 



+ 



1*9 



+ 



0*4 



4- 



22*5 



+ 1*9 



1878 



+ 



1-8 





0-9 



+ 



3-4 





ri 



+ 



3-4 



4- 



1-8 



4- 



3-0 



4- 



1-8 



4- 



2'6 



4- 



4-1 



+ 



2*7 



4- 



3*0 





25*1 



+ 2*1 



1879 



+ 



3-0 





o-o 



+ 



0-7 



+ 



3-2 



4- 



2-4 



4- 



16 



4- 



0-5 



+ 



17 



+ 



1-4 



4- 



4-2 



+ 



3-o 



4- 



i*o 



+ 



22*7 



+ 1*9 



Sums. 



+ 



in 



+ 



I2'5 



+ 25-9 



4-42'6 



+ 62-2 



+67-2 



4-59-4 



+6o-6 



+ 67-4 



4-73-5 



+68*6 



+ 18*4 



+ 576*0 



1 



Means 



+ 0-5 



+ 0-4 



+ 0-8 



+ 1-3 



+ 1-9 



4- 



2-0 



+ 1-8 



+ 1-8 



1 



4- 



2-0 



4- 



2*2 



4- 



2*1 



+ 0*6 







During the years 1844, 1857, and 1870 the observations of Thames temperature were incomplete, the 

 results for those years have in consequence been altogether omitted. The monthly values in different 

 figures are estimations, inserted in order to complete the numbers for the particular years in which they 

 occur for the purpose of taking measE. 



