GENEBAL BIBLIOGRAPHY. 



(EcoBomic literature.) 



1826, Harris, T. W.— Trees.<New England Farmer, V, pp. 169-171, December 22. 



1836. Erichson, W. F. — Systematische auseinandersetziing'der familie der borken- 



kafer (Boatrichidse).<Archiv fur Natflrgeschichte v. A. F. Wiegmann, 

 Zweiter Jahrgang, Erster Band, pp. 45-65. 



1837. KiRBY, Wm. — Fauna boreali Americana; or the zoology of the northern parta 



of British America, Part IV, Insecta, p. 195 [Norwich]. 

 1839. Ratzbburq, J. T. C— Die forst-insekten, Vol. I, p. 217, Berlin. 



1841. Harris, T. W. — A report on the insects of Massachusetts injurious to vegeta- 



tion, p. 72, Cambridge. 



1842. Harris, T. W. — A treatise on some of the insects of New England which are 



injurious to vegetation, pp. 72-73, Cambridge. 



1843. Mannehhbim, G. G. — Beitrag zur kaefer-fauna der Aleutischen Inseln, Insel 



Sitka und Neu-Californiens.<Bul. Soc. Imp. Nat. Mosc, Tom. XVI, ii, 

 pp. 175-314. 



1852. Harris, T. W. — A treatise on some of the insects of New England which are 

 injurious to vegetation, 2d ed., p. 76, Boston. 



1858; Pitch, Asa. — Fourth report on the noxious, beneficial, and other insects of 

 the State of New York.<Trans. N. Y. State Agr. Soc, XVIII, pp. 781-854. 



1859. Le Conte, J. L. — Reports of explorations and surveys . . . from the Missis- 

 sippi River to the Pacific Ocean. Report on insects collected on the survey, 

 p. 59, Washington. 



1862. Harris, T. W. — A treatise on some of the insects injurious to vegetation, new 



ed., p. 86, Boston, New York. 



1863. Harris, T. W. — A treatise on some of the insects injurious to vegetation, Flint 



ed., pp. 84-86, Boston, New York. 

 1868. Le Conte, J. L. — Synopsis of the Scolytidse of America north of Mexico, 

 Appendix. <Trans. Amer. Ent. Soc, XV, pp. 150-178. 



1868. Zimmerman, C. — Synopsis of the Scolytidae of America north of Mexico.-< 



Trails. Amer. Ent.. Soc, XV, pp. 141-150, September. 



1869. Chapuis, F. — Synopsis des Scolytides.<M6m. Soc Roy. Sci. Lifege, Author's 



extra, pp. 1-61. 

 1871. Le Baron, W. — Means against larvae in timber; answers to correspondents.^ 



Prairie Farmer, vol. 42. 

 1876. Le Conte, J. L. — The Rhynchophora of America north of Mexico.<Proc. 



Amer. Phil. Soc, pp. 384-386, December. 

 1876. Peck, C. N.— The black spruce.<Trans. Albany Institute, VIII, pp. 283-301. 



1876. Thomas, Cyrus. — Sixth report of the State Entomologist on the noxious and 



beneficial insects of the State of Illinois, p. 146. 



1877. Smith, E. A. — Shade trees, indigenous shrubs and vines, by J. T. Stewart, 



M. D., and insects that infest them, by Miss Emma A. Smith, p. 52, Peoria, 

 111. 

 1877. Packard, A. S.— Report on the Rocky Mountain locust and other insects now 

 injuring or likely to injure field and garden crops in the Western States and 

 Territories.<9th Ann. Rep. U. S. Geol. & Geog. Surv. Terr., pp. 589-810. 

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