74 THE CONNECTICUT POMOLOGICAL SOCIETY. 



unfold, and this produces a spotting, isolated brown spots in 

 the interior of the leaf and also arotmd the margins, and it is 

 very difificult to tell from spray injury caused either by Bor- 

 deaux or by this very lime-sulphur or lime-sulphur mixtures 

 with other compounds in them. This fungus really burns on 

 the leaf, which makes it very difficult to distinguish it. And 

 even when leaves are sent into the station, I want to know 

 whether they have been sprayed or not, to help me decide 

 whether it was this fungus or spraying that produced the 

 injury, because they are so very similar. 



Vice-President Drew : Question No. 22, "Are we all 

 agreed that lime-sulphur is giving better results than Bor- 

 deaux?" I thing there is no question of more importance. 

 I think that has been pretty well answered, but I will ask 

 Prof. Whetzel to speak just a word on that again. 



Prof. Whetzel: I think the best way to answer that 

 is to put it to a vote, and so I ask everybody that is agreed 

 that lime-sulphur is better than Bordeaux for summer spray- 

 ing to stand up. Ladies can vote for this just as well as 

 the. men you know. Now everybody that believes Bordeaux 

 is better than lime-sulphur stand up. Bordeaux doesn't seem 

 to have very many friends here. I think that is sufficiently 

 answered. 



Prof. A. G. Gullev : I want Prof. Whetzel to explain 

 to this audience clearly the exact difference between the self- 

 boiled and the other sulphur-lime mixtures. I think there are 

 a lot of people in this audience that don't understand why one 

 burns and the other does not. Please give the chemical rea- 

 son. 



Prof. Whetzel: As I said before, it is very unfortun- 

 ate that it was ever called self-boiled. The formula for the 

 so-called self-boiled lime-sulphur of Scott, if we choose to 

 call it Scott's lime-sulphur, is 8-8-50, 8 pounds of lime, 8 

 pounds (T sulphur and 30 gallons of water; ])nt lime in a bar- 

 rel, add a little water and add the sulphur while the lime is 

 slaking and imtil it is all slaked, and the siil])lmr and lime are 



