STATE HORTICULTURAL SOCIETY. 117 



men must recognize that fact. The first growth, in being arrested, 

 is the cause of many miseries. When you go to South Pass, our trees, 

 from their second growth not being matured, lose their crop. 



Mr. Nelson — You said we should arrest this gi'owth in the North in 

 July. Can you tell us how to do it? 



Dr. Hull — I will do so. Root prune by means of a coulter plow. 



Mr. Nelson — The same thing with small trees could be done by a 

 tree digger, but they incline borers to take hold of the same trees. For 

 three or four years old trees it will do, I have no doubt. 



Mr. Bliss — Wliat time of year will you apply this? 



Dr. Hull— If you put this in early the first growth would not be 

 developed. 



Mr. Bliss — I think if you take our common ground and put this in 

 early you well etfect an enlargement of the growth instead of dwarf- 

 ing it. 



Dr. Hull — I think you are in error there. If you put this in you 

 will arrest the growth. 



Mr. Bliss — I generally put this in a few inches down — touching the 

 roots. 



Mr. Wier — There is one thing I would like to call attention to. For 

 the last three years I have been examining all kinds of trees late in the 

 fall. My idea is that the last thing the leaf does in the fall is to 

 develop or elaborate the watery sap that flo>vs down between the new 

 bark and the new wood of that year. [ read the Doctor's explanations 

 about the apple trees being killed, and I cannot agree with him at all. 



Dr. Hull — You are speaking of this diseased sap? 



Mr. Wier — No. I think the frost caught that sap before it reached 

 the root, and being between the new bark and the wood, it separated 

 them from each other. Next spring you will find every particle of the 

 tree is dead. 



Dr. Hull — I think if Mr. Wier were to examine further, or a little 

 more closely, he would find he was wrong. Three or four j^ears ago 

 Mr. Huggins brought from St. Louis, and exhibited to this Society, a 

 branch of an apple tree from ,which a ring of bark had been taken two 



