THE CANADIAN HORTICULTURIST. 



83 



rived from the annual records of the Can- 

 adian Meteorological Service for eight years 

 (1874-81) ; those from Montreal from same 

 records for six years (1875-80) ; those from 

 Pelee from C. M. S. station reports for three 

 and a half years. The averages for European 

 stations are quoted from Blodgett's "Ameri- 

 can Climatology," and are for periods, with 

 few exceptions, longer than eight years." 



MONTHLY MEANS OF CANADIAN SUMMERS. 



May. June, j July. Aug. Sept. 



Toronto 



Hamilton 



Windsor 



Pelee 



Montreal, Que. .. 

 Winnipeg, Man.. 



Lindsay 



Barrie 



Gravenhurst . . . . 



73.4 

 73.4 

 73.5 

 69.8 

 67 3 

 65.6 

 67.4 

 05.4 



71.3 

 71.4 

 72.9 

 68.1 

 64.1 

 65.6 

 67.0 

 64.5 



60.3 

 63.9 

 63.8 

 66.3 

 50.0 

 51.9 

 59.2 

 60.5 

 58.1 



MONTHLY MEANS OF EUROPEAN SUMMERS. 



Thos. Beall. 



Lindsay, January, 1885. 



SCAB OX THE APPLE. 

 Dear Sir, — At the winter meeting 

 of the JFruit Grower.s' Association held 

 at Woodstock, I consented to act as 

 one of a committee appointed to con- 

 duct a series of experiments to test the 

 vahie of sulphur and sulphur com- 

 pounds as preventives of the black 

 scab on apples. The varieties that I 

 experimented with were the Swaar and 

 the St. Lawrence. I applied flour of 

 sulphur in the proportion of one pound 

 to twelve gallons of water at two dif- 

 ferent times. The first application the 



young apples were about the size of 

 marbles, and two weeks after the first 

 application I showered them for ihe 

 last time. When 1 gathered my ap- 

 ples I could not detect any material 

 difference between those to which I ap- 

 plied the sulphur and those of the 

 same varieties that I did not ; both to 

 all appearance being equally affected, 

 by the scab. 



Yours truly, 



S. Cornwall. 

 Norwich, Oct. 31, 1884. 



THE PtUST ON THE BERBERRY. 



The following correspondence on a 

 much vexed question is published in 

 the hope that some one may be able to 

 contribute something tending tow^ards 

 its solution : 



Wroxeter, Nov. 28, 1884. 

 Geo. Leslie & Son, 



Dear Sirs, — Enclosed find your let- 

 ters from Messrs. St. George and Beadle. 

 I thank you for the opportunity of per- 

 using them, also for the trouble you 

 have taken in supplying me with much 

 valuable information on this very in- 

 teresting subject. Mr. St. George's 

 determination to institute a number of 

 experiments next summer, to ascertain 

 whether the rust, natural to the one. 

 can be cultivated on the other, is, in 

 my estimation, a very important step. 

 If carefully conducted, it will do more 

 to settle this question than any other 

 method that could be adopted I hope 

 Mr. St. George will make public the 

 result of his experiments. 



Very truly yours, 



S. B. Smale.. 



Oakridges, Oct. 20, 1884. 

 Bear Sir, — I have yours of the 27th 

 and Dr. Smale's, which I enclose. I 

 have for a number of years planted Ber- 

 berry hedges, and cannot find any con- 



