8lO JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY, 



of this resemblance and the similarity of their depredations in the 

 grain-field the two are often confused. On closer examination, however, 

 the larvae can be easily recognized ; the antennae are rather long 

 and conspicuously clavate, the body is not flattened, and the forelegs 

 are long and stout. These larvae can move with much greater 

 rapidity than the true wireworms. — V. G. J. 



Wistarias. By P. S. Hayward (Gard. Mag. No. 3111, p. 436; 

 June 14, 1913)- — Besides the well-known chinensis and miiltijuga 

 there are several very beautiful varieties which are little known, but 

 which nourish equally well. Varieties of multijuga worth growing are 

 alba, a fine white, fragrantissima, having a strong perfume of bean- 

 fields, and rosea, a pale pink ; there are also double forms of chinensis 

 and miiltijuga. 



Wistaria brachybotrys is a fine white with very large blossoms. 



E. B. 



Wood Turpentines. By L. F. Hawley (U.S.A. Dep. Agr., 

 Forest Service, Bull. 105, January 11, 1913). — Turpentine differs 

 greatly in composition and value, due mainly to the amount of refining 

 to which it has been subjected. Here quite a number of interesting 

 experiments have been carried out which must eventually be valuable 

 to those who are interested in waste resinous wood as a raw material. 



A. D. W. 



Woods Grown in the United States, Mechanical Properties of 



(U.S.A. Dep. Agr., Forest Service, Circ. 213, March 24, 1913). — 

 A table containing the result of tests on forty-nine species of wood — 

 specific gravity, shrinkage, bending, and tension. These tests were 

 carried out by the Forest Service. — A. D. W. 



Woolly Aphis, Fighting the (Gard. Mag. No. 3104, p. 290 ; 

 April 26, 1913)- — This destructive pest is very difficult to contend 

 with when it attacks the roots of fruit trees in addition to the stems 

 and branches. 



Success in fighting it has been attained by injecting carbon bi- 

 sulphide into the ground in several places, 2 feet from the trunk. A 

 similar treatment was successful in France with the Phylloxera in 

 vineyards. — E. B. 



Woolly Aphis Migration from Elm to Mountain Ash. By 



E. M. Patch (Jour. Econ. Entom. vol. v. pp. 395-398 ; fig.). — The 

 woolly aphis (Schizoneura lanigera) was found abundantly on apple, 

 Pyrus americana, P. sitchensis, and species of Crataegus. Root 

 feeding was not observed, and there was no migration from root to 

 stem in Maine. The authoress traces the aphides from elm (Ulmus 

 americana) bark or elm leaves (which they cause to curl) to the apple 

 and other plants named. She also points out that the two forms 

 Schizoneura lanigera and S. americana cannot be separated from one 

 another by antennal characters when a long series is examined. 



F. /. C. 



