70 STATE HORTICULTURAL SOCIETY. 



will be published in Bulletin form and will be sent free to anyone so 

 those who wish it can have a full discussion of all these tables and 

 ligures. 



DISCUSSION. 



Q. I would like to ask the correct pronunciation Bauin6 and define 

 it. 



Mr. Patten — I am not responsible for the spelling on these sheets. 

 The word is pronounced as thought it was spelled bo-inay. The word 

 Baum^ has reference to the gravity of the solution. Now instead of 

 using the term specific gravity which shows the ratio between the weight 

 of a given volume of the solution to an equal volume of water, we 

 use the term Baume which expresses this ratio in degrees. Thus a so- 

 lution that tests 30° Baum«§ is 30° heavier than water. 



Q. What influence has a very low temperature on polysulphides of 

 lime? 



Prof. Patten — I do not think that it has any influence. 



Q. Do you think that lime sulphur solution which is made in the 

 fall will be as good in the spring as freshly made. 



Prof. Patten — There will no doubt be some amount of oxidization 

 taking place and this of course you cannot prevent, but I think it would 

 be just about as good. I know I have seen the statement that freezing 

 does not damage lime sulphur solution although I do not think it a good 

 practice. 



Q. Would it freeze? 



Prof. Patten — I do not think in this climate it would as it is too con- 

 centrated. 



Q. When a barrel leaks and shows exudation on the outside, is that 

 lime sulphate? 



Prof. Patten — I cannot answer that question because I have never 

 seen it. I should rather imagine that it was lime sulphate. 



Q. The average farmer has no hydrometer. What assurance have we 

 of the commercial lime sulphur preparation that we buy? Are they 

 tested as they should be? 



A. Tn answering that I would say that my experience is not very ex- 

 tensive with commercial sulphur samples although 1 have analyzed sam- 

 }»les from the Blanchard Company the Ilex and the Graselli Companies 

 and there lias been very little difference in all of these. They vary a few 

 per cent in total sulphur in solution. I have never found one that was 

 much below 24%. 



Q. Most of them suggest that they are over 30%. 



Prof. Patten — That is the Baum6 reading. 



Q. Some firms say there is more sulphur in theirs than others. Is 

 that true? That argument Avas made to me the other day by an agent. 



Prof. I*atten — So far as my experience goes, 2G% is about the aver- 

 age. There is not a very great difference in the amount of sulphur in 

 solution. 



Q. Do you think it would be profitable to buy a hydrometer? 

 They cost about $1.50 I believe. 



Prof. Patten — To the man who makes his own lime-sulphur solution, 

 an hydrometer is almost indispensable for it is the only way we have 

 of felling how much sulphur there is in a solution. Circular No. 10 of 



