64 



STATE HORTICULTURAL SOCIETY. 



out a little later that we were unable to explain the pheuonieua that 

 we had discovered the day before. 



However, we have carried on some experiments during the past sum- 

 mer, regarding the making of concentrated lime-sulphur solution and 

 possibly I have some facts to present to you today that may be of in- 

 terest. 



Now in the making of linie-suli>liur solution, we use sulphur and lime, 

 and boil this up with water. The tA^o things to look after necessarily 

 is the quality of the sulphur and the quality of the lime which you use. 

 Although we have not made A'ery extensive analyses of sulphur sam- 

 ples, yet, I want to say that I have never found a sample of sulphur that 

 has been adulterated. They have been all pure sulphur. There is this 

 point to guard against and that is the fineness of the sulphur. If jou 

 have a sulphur that is very coarse grained, and largely granular, it 

 will not go into solution nearly as rapidly as the very fine flowers or 

 flour of sulphur. That is (juite an important point. 



Now in regard to the lime. The lime is what will give you the great- 

 est trouble in' making a lime-sulphur solution at home because you may 

 have lime which is only half lime. There has been passed out to you 

 by the gentlemen papers on which I have had printed some figures which 

 were obtained in our laboratory this summer, and the first table which 

 is given here is the composition of some of the limes with which we 

 carried on these investigation. The samples are given here by number 

 and you will see that the amount of real lime, or calcium oxide, which 

 is the valuable portion of the lime, varied in these six cases from 57.66 up 

 to 96.4 per cent, while the magnesia varies from 0.13 up to 41.97 per 

 cent. 



Table I. 



There is of course very much diff'ereuce in the amount of magnesia 

 in these samples of lime. Table No. II. gives the composition of the 

 lime-sulphur solutions made from these six samples of lime and we made 

 our lime-sulphur solutions in this work in a large tank used by the 



