FOREST PROTECTION INSECTS. 173 



Sperling, Paul. Die erzfeinde des waldes. 76 p. 8. Dresden, 1878. 



Wucher, Peter. Ueber waldverwiistung und guterzerstrummerung in ihrem 

 einfluss auf die volkswirthschaftlichen verhaltnisse in Algau; ein mahnruf an Bay- 

 ern's landwirthe. 35 p. 8. Augsburg, 1875. 



6. INSECTS. 



Barth, J. B. Om grantorken og barkbillen; et'bidrag til en kritisk vurderen af 

 theorien om barkbillens skadelighed. 42 p. 12. Kristiania, 1880. 



Bechstein, Johann Matthaus. Forstinsectologie; oder, Naturgeschichte der 

 fiir den wald schadlichen und niitzlichen insecten. 558 p. pi. 8. Gotha, 1818. 

 (Bechstein, J. M., and Laurop, C. P., eds. Die forst- und jagdwissenchaft. theil 4, 

 bd. 2) 



Bechstein, Johann Matthaus, and Scharfenberg, G. Lud. Vollstandige 

 naturgeschichte der schadliche forstinsekten. Ein handbuch fiir forstmanner, 

 cameralisten und oekonomen. 3 v. 13 pi. sq. 8. Leipzig, 1804-05. Agr5 249 



Blandford, Walter Fielding Holloway. Insects injurious to Coniferse. 29 p. 

 8. [London] 1892. 



Reprinted from the Journal of the Royal horticultural society, v. 14. Conifer conference report. 



Burke, Harry E. Black check in western hemlock. 10 p. illus. 8. [Wash- 

 ington, 1905] (U. S. Dept. of agriculture Bureau of entomology. Circular 61) 



Agr 61168 



Connold, Edward Thomas. British oak galls. 169 p. illus., 68 pi. 8. Lon- 

 don, 1908. Agr 8-1037 



Cook, Melville Thurston. Galls and insects producing them. pt. 1-9 & appx. 1. 

 pi. 8. Columbus, 1902-04. (Ohio state university. Contributions from the 

 Department of zoology and entomology, no. 8, 11, 17) 



Reprinted from Ohio naturalist, v. 2, p. 263-278 ; v. 3, p. 419-436; v. 14, p. 115-147. 



Felt, Ephraim Porter. Insects affecting forest trees. 479-534 p. illus., 16 pi. 

 4. Albany, 1903. Agr 4-277 



Reprinted from 7th report, Forest, fish and game commission, state of New York. 



Felt, Ephraim Porter. Insects affecting park and woodland trees. 2 v. illus.. 

 70 pi. f. Albany, 1905-06. (New York state museum. Memoir 8) G S 7505 



Paged continuously. 



Bibliographies interspersed. 



"Supplemental bibliographic and descriptive catalogue": v. 2, p. 701-755. 



Felt, Ephraim Porter. Insects injurious to elm trees. 351-379 p. illus., 3 pi. 

 4. Albany, 1902. 

 Reprinted from 5th annual report, Fisheries, game and forest commission, state of New York. 



Felt, Ephraim Porter. Insects injurious to forest trees. 31 p. illus., pi. 4. 



[n. p.] 1898. 



Extract from the 4th annual report of the Commissioners of fisheries, game and forests of the state of 

 New York. 



Froggatt, Walter Wilson. The entomology of the grass-trees (Xanthorrhoeu) 

 73-87 p. pi. 8. [Sydney] 1896. 



From the Proceedings of the Linnean society of New South Wales, 1896, pt. 1, April 29th. 



Froggatt, Walter Wilson. Insects of the wattle trees. 701-720 p. 3 pi. 8. 



Sydney, 1902. 



From the Agricultural gazette of New South Wales, v. 13, pt. 7, July, 1902. 



Fuchs, Gilbert. Uber die fortpflanzungsverhaltnisse der rindenbrutenden bor- 

 kenkafer verbunden mit einer geschichtlichen und kritischen darstelhmg der bishe- 

 rigen literatur. 83 p. 10 pi., tables. 4. Miinchen, 1907. Agr 8-917 



Gillanders, A. T. Forest entomology. 422 p. illus. 8. Edinburgh and Lon- 

 don, 1908. Agr 8-756 



