The Canadian Hokticulturist. 



DIRIX'T.ONS |()K HOMi: MANL'l AC lU Kl'. ol (OI'I'IR ('.\\< 



BON ATE. 



^J^. S tile precipitated lunn of tarbuiiate of copper is not always obtain- 

 able from druggists, directions are herewith appended for the easy 

 l)rcparation of this matL-rial, at a cost much less than the usual 

 wholesale price. 



In a vessel capable of holding two or three gallons, dissolve i ^ 

 ]iounds of copper sulphate (blue vitriol) in 2 quarts of hot water. 

 This will be entirely dissolved in fifteen or twenty minutes, using the crystalline 

 form. In another vessel dissolve i ^ pounds of sal soda (washing soda) also in 

 2 (juarts of hot water. When completely dissolved pour the second solution 

 into the first, stirring briskly. When effervescence has ceased fill the vessel with 

 water and stir thoroughly ; then allow it to stand five or si.x hours, when the 

 sediment will have settled to the bottom. Pour off the clear liquid without 

 disturbing the precipitate, fill with water again and stir as before ; then allow it 

 to stand until the sediment has settled again, which will take place in a few 

 hours. Pour the clear liquid off carefully as before, and the residue i?, carbonate 

 of copper. Using the above quantities of copper sulphate and sal soda, there 

 will be formed 1 2 ounces of copper carbonate. 



Instead of drying this, which is a tedious operation, add four (juarts of strong 

 ammonia, stirring in well, then add sufficient water to bring the whole quantity 

 up to 6 f}uarts. This can be kept in an ordinary two gallon stone jar which 

 should be closely corked. 



Formula. — Each (juart will contain two ounces of the carbonate of copper, 

 which, when added to 25 gallons of water, will furnish a solution for spraying, 

 of the same strength and character as that obtained by the use of the dried car- 

 bonate, and one which can be prepared with little labor, and kept ready for use 

 throughout the season. 



Caruonatf. ok Copfkr in Su.si'ENsiON. — ^\■hen the carbonate is to be used 

 in suspension, instead of adding the amiiioiiia to the sediment, add water until 

 the whole ([uantity is made up to 6 quarts. Stir this thoroughly until the sedi- 

 ment is completely sus])ended (entirely mixed throughout) and pour the thick 

 Hcjuid into a suitable jar, when it will be ready for use. Before using, shake the 

 contents thoroughly, so that all the sediment may be evenly distributed in the 

 water. I'our out a quart of the thick fluid and mix with 25 gallons of water. 



JOHN ( "k \i(.. 

 //<>r/i,ii//iirist. Kxperinniital Farm, in Bulletin Xo. 10. 



Mi( MILAN will expend $12,000 to $15,000 on its forestry exhibit, ami $4,000 

 to $5,000 on its display of fruits. 



