Winter Meeting. 173 



repeatedly clean crops where this spray has been used. Following is 

 the solution recommended : 



Twenty pounds of blue vitriol, i pound of white arsenic, i pound 

 of Paris green, 2 pounds of sal soda, 87^2 pounds of lime and 250 

 gallons of water. 



Prepare the arsenic by boiling one pound of arsenic with two 

 pounds of sal soda in two gallons of water for forty-five minutes. 



Dissolve vitriol and strain in your barrel or tank, filling two- 

 thirds full with water. Slack the lime in another barrel or tight box, 

 and add enough water for the other third ; then through wire screen- 

 ing strain your lime water in with the vitriol and keep well agitated 

 while doing so. Then add the Paris green by dissolving in a little 

 water, agitating well, then add the arsenic solution, again agitating. 



This mixture gives best results by using as soon as made, as 

 after standing two days is considered worthless. 



Spray apples, first, just as buds begin to swell; second, just before 

 buds break open ; third, just as soon as blossoms fall. 



Spray potatoes just as soon as the bugs begin to eat the vines, 

 again just before the potatoes blossom. 



You need not be afraid of burning the foliage with above solution, 

 if properly made and agitated, so spray very thoroughly and see the 

 apples grow free from worms and scab, and the potatoes from bugs 

 and blight. 



For each spraying of apples seven gallons should be used for each 

 average sized tree. 



W. A. Gardner. — I do not mean to say that spraying is not good. 



L. A. Goodman. — The Canadian formula, it seems to me, Avould 

 cost too much in a large way and be too much trouble, as it is more 

 work than other formula. 



Prcs. Whitten. — I do not intend to advertise by calling on men 

 who have machines to sell, but we would like to hear from Mr. 

 Johnson on dust spraying. 



Mr. Johnson. — Mr. President and fellow members: I appreciate 

 the opportunity your kind invitation affords me, of laying before you 

 a condensed statement of the comparative results as obtained and re- 

 ported to me by the growers, who have used both systems. What 

 we are interested in as growers is results in the orchard. The simple 

 statement of the subject on your program, spraying, liquid and dust, 

 materials, machines and time, ir, sufficiently comprehensive to draw- 

 out the best points in both systems, and indicates that our worthy 

 Secretary has a broad and intelligent view of the situation. I wish 



