37 



then added, care being taken to stir in well, and keep it 

 from settling to the bottom. 



(d) Carbonate of copper i)4 oz. 



, . Paris green i %■ oz. 



Water 25 gals. 



These mixtures are not warranted, but proved effective 

 last year. 



HOME MANUFACTURE OF COPPER CARBONATE. 



As the precipitated form of carbonate of copper is not 

 always obtainable from druggists, directions are given for 

 the preparation of this material at a cost much less than 

 the usual wholesale price. 



[n a vessel capable of holding two or three gallons, 

 dissolve 1^ pounds 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 IJ pounds of sal soda (washing 

 soda) also in 2 quarts 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 

 six 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 is carbonate of copper. 

 Using the above quantities of copper sulphate and sal soda, 

 there will be formed 12 ounces of copper carbonate. 



Instead of drying this, which is a tedious operation, add 

 four quarts of strong ammonia, stirring in well, then add 

 sufficient water to bring the whole quantity up to six 

 quarts. This can be kept in an ordinary two gallon stone 

 jar which should be closely corked. 



It is very important that orchdrds should be kept in a 

 thrifty condition. Good cultivation will go far to rid an 

 orchard of diseases and insect pests. Neglected orchards 

 are the nests and propagators of the vermin or pests that 

 spread year after j'ear over our land, and cause so much 

 labor and expense to exterminate. A few starved, ill-cared 

 for, and half-dead orchards in a neighbourhood will breed 

 enough worms, moths, caterpillars, and borers to seed and 

 half destroy all the rest. It becomes a very important 

 matter, then, that only strong, vigorous, healthy orchards 

 are cultivated. 



