WHAT AILS YOUR PLANTS 233 



To Make Two Gallons. Take two barely level 

 teaspoonfuls of copper carbonate; and two fluid 

 ounces of ammonia. 



This amount of copper carbonate is the equiva- 

 lent of one-fourth ounce. It may be secured at 

 any drug store, and should be about as coarse as 

 granulated sugar. You can measure out two fluid 

 ounces of ammonia by taking one-fourth of a 

 half-pint bottle. Or you will probably find some- 

 where around the house a two-ounce or a four-ounce 

 bottle. If you are in doubt, determine the matter 

 by filling a pint Mason jar with the bottle you are 

 to use. There are sixteen fluid ounces to the pint. 



Place your copper carbonate in an empty quart 

 jar, and pour your ammonia over it. Use just 

 enough ammonia to dissolve it. This may take a 

 little more or a little less, because ammonia varies 

 in strength. Fill up the jar with water and allow 

 any sediment to settle. Pour the clear, blue liquid 

 into your spray-bucket, and add seven quarts of 

 water, making eight quarts of the spray mixture 

 in all. 



Like Bordeaux, this fungicide deteriorates on 

 standing, and should be made up fresh each time 

 you want to spray. 



FORMALIN 



Where potatoes are scabby, or where onions are 

 infested with smut, experience has shown that the 

 trouble may largely be averted by seed treatment 

 with a solution of formalin. Other materials are 



