51 



has proved hard in getting into orchard conditions. Growing of 

 grafted trees in the nursery presents a number of difficulties and the 

 grafted trees are difficult to obtain. A number of the fine varieties 

 of hickories that we have will undoubtedly sell at about the prices 

 paid for fine pecans as soon as they can be produced in commercial 

 quantities. 



While grafted hickory trees are diff'icult to obtain and diff'icult 

 to transplant and get established, there is much promise in top work- 

 ing young hickories to fine varieties especially where they are growing 

 on rich land or on land that can easily be enriched. 



In top working care must be taken to put the proper varieties on 

 the various hickory species. All is not known about this that is to be 

 desired yet we know much more than we did a few years ago, for 

 systematic attempts have been made to graft the most commonly oc- 

 curring hickory species with the best known varieties and note the 

 results over a series of years. While these experiments are far from 

 complete a few general laws have been observed. 



1 — Generally a hybrid variety will do well on either parent. 



2 — Most varieties do pretty well on the pecan and on the shag- 

 bark. INIost do well for a few years at least on the bitternut although 

 some varieties do not do well later. 



3 — The varieties that do well on the pignut and the mockernut 

 are limited being so far seemingly restricted to the Brooks on the 

 pignut and the Barnes on the mockernut. It is hoped that this num- 

 ber may be enlarged later. 



Varieties: — 



Barnes — Parent tree at Fayetteville, O. A fine variety doing well 

 when grafted on mockernut. Apparently a shagbark mockernut 

 hybrid. 



Beam — Parent tree in Mt. Oreb, O. 



Beaver — Parent tree near Millerstown, Pa. A shagbark x bitter- 

 nut hybrid of much promise. 



Billau — Parent tree in Linn Co., la. 



Brooks — Parent tree in West Virginia. A fine hickory doing well 

 when grafted on pignut. 



Casper — Parent tree in Illinois. 



Cedarapids — Parent tree near Cedar Rapids, la. 



