1'74 How TO Grow Cut Fi.owbrs. 



nize the different forms of disease as they may develop, 

 without the detailed description so clearly given in the 

 pages referred to. The practical question which arises 

 is, how shall these diseases be avoided, or if they ap- 

 pear, what is the remedy. In answer to this last ques- 

 tion Prof. Halstead, who has given this matter careful 

 study, recommends the following formulas^ 



"(1.) Potassium sulphide solution : Potassium sul- 

 phide, one ounce ; water, ten gallons. The potassium 

 sulphide is a solid, costing fifteen cents a pound, and is 

 easily dissolved in the water as needed. In some cases 

 it has bieen most convenient for me to dissolve the 

 solid in a quart bottle and ask the gardener to pour out 

 the required amount as needed. The application is by 

 spraying thoroughly about once a week. The results 

 have been so marked that in one instance a large 

 grower of carnations after using this mixture for a sea- 

 son wrote me that he felt confident that it had saved 

 him a great deal and that if generally used it would 

 prove a blesssing to all who are affected with carnation 

 diseases of the sorts above mentioned. Possibly it 

 would be of benefit when rust is the leading enemy. 



" (2.) The Bordeaux mixture. Perhaps the best fun- 

 gicide now in use in orchard and garden is the Bor- 

 deaux mixture. This is made as follows : Copper sul- 

 phate, three pounds; lime (unslacked), two pounds; 

 water, twenty-two gallons. Dissolve the sulphate of 

 copper in one vessel and slack the lime in another, 



