28 TRANSACTIONS OF THE ILLINOIS 



at least twenty varieties myself for trial, and some of them are quite as 

 satisfactory as those in cultivation ; and it is by this method of trial and 

 selection that we are to obtain improved varieties. 



In relation to rust, Mr. Wier said that some twelve years ago he 

 watched it closely. It seemed to come and go, no man knew how nor 

 when. Dr. Hull used to say that when the rust got into a plantation it 

 could not be got out, but would ruin the patch, sooner or later. Two 

 years ago the rust broke out in my blackberry patch and covered a space 

 as large as this room. This spring I looked for it, and nothing of the 

 rust could be found. The fruit ripened perfectly, and, so far as I can see, 

 the canes are in good condition. 



Mr. Hunt — I would like to ask Mr. Wier if he thought the Kitta- 

 tinny more subject to rust than other varieties. I have the Lawton on 

 my grounds, and they are not affected with rust. Last spring I planted 

 Kittatinny and Snyder. If the Kittatinny is more liable to rust than 

 other varieties I would like to know it. Should I dig up the rusted plants 

 as they appear ? 



Mr. Wier — The Kittatinny does rust, and is quite subject to this 

 disease. The pulling up of the rusted plants does no more good than the 

 locking of the stable after the horse is stolen. 



Mr. Leslie — My practice has been to dig up the plants affected with 

 rust as fast as they appear, and I have not been seriously troubled with it, 

 and not so much now as at first. 



Mr. Carpenter said there was philosophy in the practice of remov- 

 ing the diseased plants. We take a sick man from among well men, and 

 so prevent contagion, and so we must do with the blackberry rust, if 

 we would check it. 



Mr. Hunt — If the doctrine of Mr. Wier is correct, we have little 

 encouragement or hope of conquering this disease. I think thorough 

 cremation will prevent the contagion. If this will not save us, what can? 



Mr. Wier — Nothing ! nothing ! 



DISCUSSION ON THE CHERRV. 



Mr. McWhorter — I want to ask Mr. Kinney if he has ever seen any 

 difference in the longevity of the Early Richmond, when worked on the 

 Morello rather than on the Mahaleb ? 



Mr. Kinney — I think I have. I know an orchard which, ten years 

 ago, was grafted on the Mahaleb, and to-day scarcely one of these trees 



