BIBLIOGRAPHY 
259 
Trail, J. W, H., and Rolfe, R. A.: 
1906. Galls, "The Wild Fauna and Flora of the Royal Botanic 
Garden, Kew,” Kew Bulletin, London, pp. 41-53. 
Verrall, G. H.: 
1875. On Asphondylia ulicis Trail. Ent. Mag., London, vol. xi., 
pp. 224-226. 
Walker, F.: 
1S71. Galls and Gall-makers. Entomologist, London, vol. v., 
pp. 450-451. 
Warburton, C., and Embleton, A. L. : 
1902. The Life-History of the Black Currant Gall-Mite, Eriophyes 
(Phytoptis) ribis Westwood. London, Jour. Linn. Soc., 
Zool., vol. xxviii., pp. 366-378, Plates XXXIII., XXXIV. 
Westwood, J. O.: 
1869. Currant-Bud Disease. Gard. Chron., London, p. 1230. 
1882. On the Supposed Abnormal Habits of Certain Species of 
Eurytomides, a Group of the Hymenopterous Family 
Chalcididae. London, Trans. Ent. Soc., pp. 307-328, 
Plates XIII., XIV. 
1885. Galls on the Roots of Orchids. Gard. Chron., London, 
2nd ser., vol. xxiv., p. 84, Figs. 19, 20. 
Whitehead, C., and Gray: 
1887. Report of the Commissioners appointed by the Government 
to inquire into the Present Visitation of the Hessian Fly 
on Corn Crops in Great Britain. 
Woodhead, F. W. : 
1900. On the Structure of the Root-Nodules of Alnus glutinosa. 
Rep. Brit. Assoc. Adv. Science, p. 931. 
Zimmermann, C. : 
1907. Contribution a la Connaissance des Cecidies du Kent 
(Angleterre). Broteria, S. Fiel, vol. vi., Serie Zoologica, 
pp. 103-108. 
