200 WEST VIRGINIA EXPERIMENT STATION 



1894 '95, but owing; to the lack of funds available for the pur- 

 pose, the publication of the same has been delayed. In the 

 meantime references have been made to the investigations and 

 to part of the results in bulletins, annual reports and papers 

 read at scientific societies and articles in scientific and other 

 journals, newspapers, etc. These references may be found 

 under the following bibliography. The pages refer, as a rule, 

 to the entire article, and not to the references which are 

 scattered through some of them. 



Apr., 1899. A. D. HOPKINS. 



All of the Illustrations in this report are original, except as 

 noted under figure. 



BIBLIOGRAPHY. 



Ij'txt of published titles l>y the author under which reference is made to 



so tin- of the work and results of the spruce and pine investigations. 



Preliminary Report Black Spruce, (Investigation.) Bull. 17, 

 W. Va. Agr. Exp, Station, May 1891. pp. 93-102. Also 

 Third An. Rep. W. Va. Agr. Exp. Station, 1891. pp. 171- 

 180. 



Notes on Destructive Forest Tree Scolytids, Science, Vol. 20, 

 July 29, 1892, p. 64. 



The Pine Beetle of the Virginias, Hardwood, Vol. 2, November 

 25th, 1892, p. 7. 



First Announcement of the Importation of the European Bark- 

 beetle Destroyer into America, Proc. Ent. Soc. Wash., Vol. 

 2, 1892, p. 353. 



Damage to Forests by the Destructive Pine Bark-beetle. (In- 

 sect Life, Vol. 5, January 1393, pp. 187-189. 



Catalogue of West Virginia Scolytidae and Their Enemies, 

 (Bull. No. 31, W. Va. Agr. Exp. Sta.. April 1893, pp. 121- 

 168 ;) includes list of spruce and pine scolytids and their 

 enemies, with collecting and breeding dates. 



Catalogue of West Virginia Forest and Shade Tree Insects, 

 (Bull. No. 32, W. Va. Agr. Exp. Sta,, May 1893, pp. 171-251. ) 

 Including list of spruce and pine insects, with collecting 

 and breeding dates. 



