98 SOME INSECTS INJURIOUS TO FORESTS. 



1894b. Hopkins, A. D. — Black holes in wood. <Bul. 36, W. Va. Agr. Exp. Sta., 

 pp. 311-336, 43 figs., 2 pis., February. 



1894c. Hopkins, A. D. — The relations of insects and birds to present forest con- 

 ditions. < Garden and Forest, p. 348. 



18940. Hopkins, A. D. — Insect enemies of the yellow poplar. <The Timber- 

 man, pp. 8, figs. 11, July. 



1894c Hopkins, A. D. — Notes on some discoveries and observations of the year 

 in West Virginia. <Insect Life, VII, pp. 145-151, October. 



1894/. Hopkins, A. D. — Serious trouble over. < Southern Lumberman; Hard- 

 wood, VI, pp. 270-271, November; Timberman. 



1894#. Hopkins, A. D. — Some interesting conditions in wood resulting from the 

 attack of woodpeckers and insects. Abstract. <Proc. Amer. Assn. 

 Adv. Sci., p. 252. 



1894/?. Hopkins, A. D. — Fifth report of the entomologist. <7th Ann. Rep. 

 W. Va. Agr. Exp. Sta., pp. 34^14. 



1895a. Hopkins, A. D. — Sixth report of the entomologist. <8th Ann. Rep. 

 W. Va. Agr. Exp. Sta., pp. 27-35. 



1895b. Hopkins, A. D. — The northern timberworm of the grub species. < South- 

 ern Lumberman, p. 7, 5 figs., January. 



1895c. Hopkins, A. D. — On the study of forest-tree insects. <Proc. Assn. 

 Econ. Ent. In Bui. 2, n. s., Div. Ent, U. S. Dept. Agr., pp. 75-79; 

 26th Ann. Rep. Ent. Soc. Ont., pp. 80-83. 



1896a. Hopkins, A. D. — Seventh report of the entomologist. <9th Ann. Rep. 

 W. Va. Agr. Exp. Sta., pp. 66-164, pis. 5, figs. 2, maps 3. 



1896b. Hopkins, A. D. — Some notes on insect enemies of tree's. <Can. Ent., 

 XXVIII, pp. 243-250, October. 



1897. Hopkins, A. D. — Eighth report of the entomologist. <10th Ann. Rep. 

 W. Va. Agr. Exp. Sta., pp. 42-57. 



1898a. Hopkins, A. D. — The periodical cicada in West Virginia. <Bul. 50, W. 

 Va. Agr. Exp. Sta., pp. 46. figs. 23, map 1. January. 



1898b. Hopkins, A. D. — On the history and habits of the " wood engraver " 

 ambrosia beetle, Xyleborus xylographus Say (Xyleborus saxeseni 

 Ratz.), with brief description of different stages. <Can. Ent., 

 XXX, pp. 21-29, pis. 2, February. ( =XyleJ)orns saxeseni Ratz., 

 A. D. H., 1909.) 



1898c. Hopkins, A. D. — Insect enemies of the locust tree. <W. Va. Farm Re- 

 view, pp. 88-93, figs. 6, March. 



18980". Hopkins, A. D. — Insects detrimental and destructive to timber products. 

 <Proc. 19th Ann. Meet. Soc. Prom. Agr. Sci., pp. 103-108. 



1898c. Hopkins, A. D. — Ninth report of the entomologist. <llth Ann. Rep. 

 W. Va. Agr. Exp. Sta., pp. 32-^0. 



1899a. Hopkins, A. D. — Tenth report of the entomologist. <12th Ann. Rep. 

 W. Va. Agr. Exp. Sta., pp. 25-36. 



1899b. Hopkins, A. D. — Report on investigations to determine the cause of un- 

 healthy conditions of the spruce and pine from 1880 to 1893. <Bul. 

 56, W. Va. Agr. Exp. Sta., pp. 197^61, figs. 99, April. 



1899c. Hopkins, A. D. — Preliminary report on the insect enemies of forests in 

 the Northwest. <Bul. 21, n. s., Div. Ent., U. S. Dept. Agr., pp. 27, 

 December. 



1900a. Hopkins, A. D.— Eleventh report of the entomologist. <13th Ann. Rep. 

 W. Va. Agr. Exp. Sta., pp. 15-17. 



1900b. Hopkins, A. D. — The pin-hole borers and how to prevent losses from the 

 ravages of the oak timber worm. < Southern Lumberman, XXVII, 

 No. 427, p. 425.. 



