Mr. C. Meldrum on a connexion [May 15, 



or minimum year in the middle. This happens in the following cases : — 

 In the Aberdeen series, 1865-67 has been taken for 1866-68, because we 

 have not the observations for 1868. In the Deanston-House series 

 1837-39 has been taken for 1836-38, the series commencing with 1837. 

 In the Demerara observations 1854-56 has been taken in place of 1855-57, 

 the series ending with 1856. The years 1870-72 have, in the Mauritius 

 series, been taken for three maxima-years ; but if 1872 be the maximum- 

 sunspot year, and the three principal maxima-years be 1871-73, the rain- 

 fall for these years will probably be still greater ; for since the 1st of January 

 1873, 38 inches of rain have fallen. The means of two years have been 

 taken in the Brisbane observations, the series commencing with 1860 and 

 ending with 1871. In the Calcutta and Toronto series we have taken the 

 one maximum-period, and the mean of the two minima-periods. 



These slight deviations, as will be afterwards seen, do not affect the 

 general results. 



Now, collecting the sums of the rainfall in the maxima- and minima- 

 periods of three years each, we get the following Table ;-— 



Table II. 



Stations. 



Kainfall 

 in 

 max. 

 periods. 



Rainfall 

 in 

 min. 

 periods. 



Excess or 

 defect in 

 max. periods 

 on min. 

 periods. , 



Rainfall 

 in 

 max. 

 3 r ears. 



Rainfall 

 in 

 min. 

 years. 



Excess or 

 defect in 



max. years 

 on min. 

 years. 





in. 



in. 



in. 



in. 



in. 



in. 





x 37*53 



116-94 



+ 20-59 



43-87 



39-90 



4- 3'97 





341-37 



305-29 



+ 36-08 



1 10-64 



108-92 



4- 1-72 





1 64*40 



157-90 



+ 6- 5 o 



53-80 



58-5o 



- 4-70 





233-10 



205-17 



+ 27-93 



76-90 



66-13 



4- 10-77 





85-82 



76-79 



+ 9*°3 



31-97 



29-75 



4" 2 - 22 





532-22 



490-01 



4- 42-21 



175-71 



168-30 



4- 7*41 





158-60 



148-00 



+ io-6o 



24-60 



21-30 



4- 3'3o 





389-57 



379"53 



+ 10-04 



132*74 



120-39 



4- 12-35 





268-61 



245-01 



4- 23-60 



87-82 



83-01 



4- 4-81 





102-20 



106-90 



- 4-70, 



27-99 



28-05 



— 0*06 





210-37 



218-76 



- 8-39 



52-61 



64-23 



— 11*62 





I75-00 



125-00 



4- 50-00 



54-co 



45-00 



4- 9*00 





331-46 



275-94 



+ 55-52 



132-22 



87-73 



4- 44-49 





305-21 



254-06 



+ 5 ri 5 



92-43 



82-20 



4- 10-23 



Queensland . 



124-07 



98-28 



4- 25-79 



5463 



61-04 



— 6-41 





81-41 



91-85 



— 10-44 



30-60 



31-49 



- 0-89 





172-50 



133-70 



4- 38-80 



53-70 



40-70 



4- 13-00 





64-44 



52-90 



4- n-54 



25-44 



19-67 



4- 5-77 





3877-88 



3482*03 



4-395-85 



1261-67 



1136-31 



+ 105-36 



The above Table comprises the results of all the rainfall-tables I can 

 find containing a maximum- and a minimum-period. Now we see that, 

 in the maximum-sunspot periods of three years each, the rainfall at the 

 eighteen stations was 395-85 inches greater than in the minimum-sunspot 



