PUBLICATIONS RELATING TO FOREST INSECTS. 99 



inoOc. Hopkins, A. D. — The periodical cioadii or sovonteen-year locust in West 



Virginia. A revision of Rul. ~j(). with additional data relating to the 



1898 and 1900 swarm. <Bul. 08, \V. Va. Agr. Exp. Sta., pi>. 2(;7-.*i:!0, 



figs. 14. pis. 3. maps 9, September. 

 1901f/. Hopkins, A. D. — Insect enemies of the spruce in the Northeast. <Hul. 



28, n. s., Div. Ent, U. S. Dept. Agr., pp. 48, pis. 10, m orig. figs., 



5 text figs. 

 1901?), Hopkins, A. D — On the development and evolution of the scolytid gal- 

 lery. [Paper read before Section F. Ainer. Assn. Adv. Sri., Denver, 



C'olo. (August). 1 Abstract published in Science. 

 1901c. Hopkins, A. D. — On insects detrimental and destructive to forest jirod- 



ucts used for construction material. [Paper read at Denver Meet. 



Ainer. Assn. Econ. Ent. ( August).! <Bul. 31, n. s.. Div. Ent.. U. S. 



Dept. Agr., pp. 00-62. 

 1901rf. Hopkins, A. D. — Insect enemies of forests and forest products. [Paper 



read at Denver Meet. Amer. Forestry Assn.] <The Forester, VIII, 



pp. 250-254. 5 figs. 

 1902(;. Hopkins, A. D. — Insect enemies of tlie pine in the lilacic Hills Forest 



Reserve. <Bul. 32, n. s., Div. Ent., U. S. Dept. Agr., pi». 24. pis 7. 



figs. 18, 5 text figs. 

 1902b. Hopkins. A. D. — On the study of forest entomology in America. <Bul. 



37, n. s., Div. Ent., U. S. Dept. Agr. (Proc. 14th Ann. Meet. Assn. 



Econ. Ent., pp. 5-28. Reprint, ibid. 

 1902p. Hopkins, A. D. — Some insect enemies of living trees. <Proc. 22d Ann. 



Meet. Soc. Prom. Agr. Sci., pp. 66-09. 

 1902^/. Hopkins, A. I). — The powder-post beetle. <Amer. Agriculturist. No- 

 vember 15 ; New Elngland Homestead, November 1. 

 190.3a. Hopkins. A. D. — Some of the principal insect enemies of coniferous 



forests in the United States. <Yearbook U. S. Dept. Agr. for 1902, 



pp. 265-2S2, figs. 10, pis. 2. (Separate No. 268, Office of Secy, of Agr.) 

 1903?>. Hopkins, A. D. — Forest insect explorations in the summer of 1902. 



<Can. Ent., XXXV, pp. 59-61, March. 

 19(i.'^c. Hopkins, A. D. — Powder-i)ost injury to seasoned wood |)roducts. 



<Cir. 55. Bur. Ent., I'. S. Dept. Agr.. pp. 5. fig. 1. 

 VM)'.i(l. Hopkins, A. D. — Methods of work and some results in forest insect 



investigations. <Proc. Assn. Agr, Colls, and Exp. Stas.. pi». 1S0-1S2. 

 I'.to.'ir. Hopkins, A. D. — Insect enemies of tlie redwood. <Bu!. .'is. Bur. For- 

 estry. V. S. Dept. Agr., pp. 32^0, figs. 4. 

 1'M*4fi. Hopkins, \. I). — Catalogue of exhibits of insect enemies of forests and 



forest products at the Louisiana Purchase Exposition. <Bul. 48, 



n. s., Div. Ent.. U. S. Dept. Agr.. pp. 50. i»ls. 22. 

 1{K)4ft. Hopkins. A. D. — Insect injuries to hardwood forest trees. <Yearbook 



V. S. Dept. Agr. for 1!MI3. pi>. ;i1.3-.32s. figs. 17. pi. 1. (Separate No. 



.'{27. Office of Swy. of Agr.) 

 1 !•()."». IUukk, II. E.— Black clieck in western hemlock. <Cir. 01. Bur. lOnt.. 



U. S. Dept. Agr., pp. 10, figs. 5. 

 I'.Mi.".!/. Hopkins, A. D. — Insec-t Injuries to forest product.s. <Yearbook I'. S. 



Deiit. Agr. for I'.KH. pp. .381-^J9S. figs. 14. (Separate No. .3.55. Ofiice 



of Secy, of Agr.) 

 l'.Mi5b. Hopkins. A. D.— The I'.!acl< Hills bct'tli'. with fnrtluM- notes on its 



distriltution. life history, and methods of <'ontrol. <Bul. .50. Bur. 



Ent.. U. S. Dei)t. .\gr.. pp. 24. figs. 0. 



