STATE HORTICULTURAL SOCIETY. 169 



say we cannot kill the bark louse? [Laughter.] There is another 

 thing will kill him — Amex'iean whisky will do it. [Loud laughter.] 

 You try it, and you will find that the bark louse will skedaddle. 



Mr. Douglas — Did your wine kill the tree ? 



Dr, Schroeder — Oh ! no, no ! 



Dr. Shimer — I have said that corrosive sublimate would kill the 

 louse, and I say that I most heartily rejoice that we have this bark 

 louse parasite. It is doing good work. We must remember that 

 there are some things else at work besides ourselves. Whisky will 

 kill them, perhaps ; that this wine will kill them is also probable. 

 It always becomes us to remember that the scales on the trunk of a 

 tree may be old bark lice. I hope the Doctor will be able to find a 

 remedy to kill the old gentleman he speaks of. 



Mr. Dunlap — The bark louse in our neighborhood has nearly dis- 

 appeared. I found a few on carefully looking over one orchard, but 

 none in my own. 



The President — It disappeared in my neighborhood sometime ago. 



Mr. Humphrey — Dr. Shimer says the bark louse deposits on young- 

 bark because it is tendei". Now, if we undertake to do away with 

 the injury, shall we not injure the bark by our remedies ? 



Mr. Eiley — I will simply state that I would take great pleasure in 

 discussing some of the points Dr. Shimer has made, in a scientific 

 manner. I do protest against many of his ideas. I should like to 

 ask him what he means by the term "species." If the Doctor will 

 explain that to me, I may be able to understand some of his opinions. 

 Otherwise I do not undei'stand all the positions he has taken. Also, 

 do you mean the "atomizer" when you mention the " spray instru- 

 ment?" 



Dr. Shimer — Yes, sir. Richard's atomizer works with a ball. I 

 think that a rabbit is a species, and so is a dog, but there are a good 

 many different kind of dogs. If I can take the bark louse from a 

 hickory tree and breed it upon the linden and upon ironwood, as I 

 have done profusely, then it proves to me that they are the same 

 species, although fed on a different food-plant. It is the same with 



