[ =5 ] 



Hence in the beginning of any year, 



7 3_ 

 4 ' 



I. The probability of a ^ry Spring is 



of a wet - - -iL 



4 ' 



of a variable - - <% 



4 I 



4 ' 



11. The probability of a r/ry Summer is - 



of a wet - - i.£ 



4 1 



of a variable - - -/- 



4 I 



4 ' 



III. The probability of a dry Autumn is 



of a wet 

 of a variable - - -i-^ 



4 ' 



4 ' 



IV. rA dry Summer is - -'- 

 ^/i»r a dry Spring the probability of <A wet - - J- 



La variable - -^^ 



V. rA dry Summer is - o 

 yffter a wet Spring the probability of <A wet - - ^ 



C A variable - f 



VI. Ch. dry Summer is - -/-^ 

 After a variable Spring xhe -^rohahWity oi \ A vf&t - - -J- 



(.A variable - -'_ 



Vol. V. D VII. After 



* Thefe rules relate chiefly to the climate of Ireland. 



