NOTES AND ABSTRACTS. 



461 



hardy, and forms a magnificent and statelj^ tree. The female foliage 

 appears much sooner and perishes much later than that of the male. 



C. T. D. 



Gipsy Moth and Brown-tail Moth, Report on Field Work 

 agrainst. By D. M. Eogers and A. F. Burgess {U.S.A. Dept. Agr., 

 Bur. Entom., Bull. 87; Aug. 1910; 12 plates, 22 figs., 1 map).— The 

 gipsy moth caterpillar will eat almost any kind of vegetation, especially 

 oak, willow, and apple ; ash, juniper, and red cedar are often attacked 

 by it, but maple is not touched if more desirable food is within reach. 



Banding the trees before the egg masses hatch out with tangle- 

 foot, a compound which retains its sticky character for several weeks, 

 has been found the best remedy so far; the caterpillars cannot sur- 

 mount the band, and this necessitates them feeding on the low under- 

 growth, which is poisoned with arsenate of lead. 



The brown-tail moth is also dealt with. — V, G. J. 



Graft Hybrids, Noteworthy. By Max Gamier {Rev. Hon. 

 Dec. 1, 1910; pp. 559-60).— Mr. W. Hener, Head-Gardener to the 

 Berlin University, has recently exhibited to the Prussian Eoyal Horti- 

 cultural Society a very curious example of graft hybridization. Solanujn 

 nigrum grafted on S. Lycopersicum (Tomato) (or vice versa, the stock 



i not being indicated), the resulting shoot produced on one side ot the 

 stem the growth of S. nigrum and on the other side that of S. Lycoper- 

 sicum, while buds formed on the dividing line of this single stem showed 

 quite different characters. One has the appearance and structure of a 

 tomato branch, but is entirely glabrous like S. nigrum. On the op- 

 posite side a branch resembles S. nigrum, but has velvety leaves like the 

 tomato. This is not all. At a certain height of the principal stem the 



i longitudinal division mentioned ceases abruptly, and a shoot has been 

 produced at that point, the two external foliar cell layers of which are 

 .of S. nigrum and all the rest S. Lycopersicum, the result being cur^^ed 

 leaves owing to the different rates of growth of the two species. These 



J three forms have been named respectively S. Koelreuterianum, S. tuhi- 

 gense, and ^S*. Gaertnerianum. The first has not fruited, the second has 

 borne fruits of the size and form of S. nigrum, but reddish like the 

 tomato. The third or terminal shoot has produced fruits somewhat 

 of tomato shape but of the black colour of S. nigrum, the size being 

 intermediate. 



The aubergin {S. Melongena) grafted on the tomato has also pro- 

 duced similar mixed characters, as also has S. Dulcamara grafted on the 

 tomato. The similarity of such results to the case of Cytisus Adami is 

 pointed out, involving a tendency to reversion which had so far been 

 |3hecked by suppression. — C. T. D. 



" Grafting". By W. J. Allen {Agr. Gaz. N.S.W. vol. xxii. pt. 2, 

 3p. 101-108; 17 figs.). — The process of whip, strap, bark, and cleft 

 grafting are clearly described and illustrated. Attention is called to the 

 ollowing points : The pruning knife must Have a sharp edge ; air must 



