202 The Canadian Horticulturist. 



preserved for some time. Experiments are now being made with a view of 

 obviating this deposit of calomel spoken of above. 



Salicylic Acid. — One-quarter ounce to the gallon of water. Kor tomatoes^ 

 red and yellow raspberries and blackberries. One of the best known and most 

 generally used of the antiseptic fluids. In order to render this acid soluble, it 

 is necessary to treat it with hot water, allowing the solution to cool before using. 

 As already stated, the bleaching tendency of this fluid is its principal objection. 

 With tomatoes and yellow fruits it has given good results. 



Sulphurous Acid. — For pears, peaches and light colored fruits. This may 

 be prepared by saturating water in a barrel with the fumes of burning sulphur. 

 The barrel being half full of water, a tin or iron vessel holding flowers of sulphur 

 is floated on the water and the sulphur set on fire ; when the flame goes out and 

 a sufficient time has elapsed to allow the sulphurous acid formed to dissolve in 

 the water, fresh air is admitted by taking off the cover and relighting the sulphur. 

 This should be repeated several times. 



Coal Oil. — This has been used successfully in the preservation of straw- 

 berries and raspberries. A colorless grade of oil should be employed. 



In selecting the fruit to be preserved, great care should be exercised in 

 picking and handling. Raspberries, strawberries and blackberries should be cut 

 instead of picked, leaving the receptacle and a small portion of the stem attached 

 to the fruit. 



Ottawa., Out. John Craig, Horticulturist. 



Frank T. Shutt, Chemist. 



SULPHATE OF COPPER FOR SCAB. 



R. JABEZ FISHER, one of the experimenters in connection with the 

 Hatch E.xperiment Station, has laid us under a debt of gratitude, if 

 his views are well grounded. He believes copper sulphate in simple 

 solution to be just as effective in destroying injurious fungi as any 

 other preparation of copper. Moreover, it is much less expensive ; 

 the amount required being only one pound to 600 or 800 gallons of 

 water, while the Bordeaux mixture requires four pounds for 50 gal- 

 lons of water; counting the copper sulphate at 8c. a pound, this is 32c. per 

 barrel full, which amounts to a considerable sum \\\ a large orchard. 



His plan of operation is as follows : As early in spring as weather permits, 

 gather and burn all stubble, weeds, grass, and debris, thus disposing of a large 

 proportion of the winter sp(jres of the various fungi. Then spray all trees, 

 trellises, and vines, and the surface of the ground not l)uriK'd over, witli sulphate 

 of C(jj)per — one pound to 100 gallons. This strength is only allowable before 

 foliage has developed. Just before blossoms open, spray all foliage with the 

 solution, one pound to 800 gallons, adding Paris (ireen, one pound to 200 

 gallons. This should be repeated two or three times, in ilic month of June, when 

 the great bulk of b(nh insects and fungi appear. 



