336 



MR. G. V. VERNON ON THE NUMBER OF DAYS 



Days. 



137-4 



143-0 



117-6 



175-6 



142*8 



154-8 

 number of days 



6th period 1 833-1 837 



7th do. I 838-1 842 



8tli do. 1 843-1 847 



9th do. 1848-1852 

 loth do. 1853-1857 

 nth do. 1858-1862 



These figures seem to show that the 

 upon which rain falls undergoes some kind of periodicity. 

 From the 2nd to the 8th period there is a continued falling- 

 off in the number of days on which rain fell^ with the ex- 

 ception of the slight advance in the 7th period; there is a 

 great rise at the 9th period^ followed by a considerable fall- 

 ing-off in the loth period. From the advance in the nth 

 period^ it would appear as if we were returning to the same 

 conditions as those prevailing during the first five periods. 



Days on which Rain fell at London, 180 7- 1862. 



Year. 



1807. 

 1808. 

 1809. 

 1810. 

 1811. 

 1812. 



1813. 

 1 8 14. 

 1815. 

 1816. 

 1817. 



1818. 

 1819. 

 1820. 

 1821. 

 1822. 



1823. 

 1824. 

 1825. 

 1826. 

 1827. 





7 

 II 

 22 

 16 

 12 

 13 



13 



12 



19 

 21 



23 

 16 



18 



13 



15 

 8 



12 

 6 



20 





14 

 II 



22 

 23 

 15 



22 



15 



8 

 14 

 14 

 19 



13 



22 



13 

 6 



19 



17 

 10 

 16 

 1 1 



7 

 4 

 9 



15 

 7 



22 



9 

 18 

 20 

 16 

 15 



25 

 14 

 II 

 24 

 14 



14 

 18 



10 

 II 



20 



<1 



6 



15 

 24 

 10 

 13 

 14 



12 

 15 

 19 

 12 

 12 



19 



16 



II 



17 

 22 



13 

 18 

 10 



10 



17 



^ 

 ^ 



17 

 12 



13 

 10 

 20 

 19 



23 



9 

 18 



17 

 19 



15 

 12 



17 

 14 

 II 



14 

 17 

 10 

 12 





6 



9 

 II 



4 

 II 

 16 



14 

 23 

 13 

 II 

 12 



12 



15 

 16 

 II 



7 



10 



12 



4 

 15 





15 



15 



20 



13 

 12 



13 

 18 



20 

 27 

 16 



10 

 8 



10 

 12 

 14 



21 

 12 



3 

 10 



9 



tUD 



9 

 15 

 21 



17 

 19 

 14 



15 

 18 



13 

 22 

 18 



4 



4 



12 



13 

 14 



23 

 17 

 15 

 II 

 16 



I «2 sC 



<D 



7 



18 



23 



6 



II 



6 



13 

 14 

 II 



H 



7 



22 

 12 

 14 

 19 

 9 



8 



18 

 10 



15 

 14 



10 



15 

 II 



II 



19 



25 



21 

 16 

 15 

 19 

 18 



15 

 16 



17 

 23 



13 

 17 

 15 

 14 

 15 



o 



II 

 10 



16 

 22 

 15 

 13 



15 



17 

 16 



15 

 12 



17 

 15 



17 

 22 

 21 



19 

 19 



6 



16 



24 



19 



19 

 16 



16 



24 



17 

 20 

 18 



9 

 16 



16 



25 

 6 



18 

 21 

 18 



H 

 21 



P 

 108 



211 



173 

 174 

 192 



179 

 199 

 188 

 206 



187 



180 

 165 

 171 

 193 



157 



176 

 197 

 144 

 138 

 186 



