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Creator:: Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Division of Entomology
Resource Type:: Conference Proceeding
Full Text:: U. S. DEPARTMENT OF AGRICULTURE, DIVISION OF ENTOMOLOGY. ON THE

Creator:: Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Division of Entomology
Resource Type:: Technical Report
Full Text:: , DIVISION OF ENTOMOLOGY. PRELIMINARY REPORT ON THE SECT EN EllIIES OF FORESTS IN THE NORTHWEST. AN

Creator:: Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Division of Entomology
Resource Type:: Technical Report
Full Text:: , DIVISION OF ENTOMOLOGY. INSECT ENEMIES OF THE S1RUCE IN THE NORTHEAST. A POPULAR ACCOUNT OF RESULTS OF

Creator:: Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Division of Entomology
Resource Type:: Technical Report
Full Text:: U. S DEPARTMENT OF AGRICULTURE, DIVISION OF ENTOMOLOGY—BULLETIN NO

Creator:: Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Division of Entomology
Resource Type:: Technical Report
Full Text:: U. S. DEPARTMENT OF AGRICULTURE. DIVISION OF ENTOMOLOGY—BULLETIN

Creator:: Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Division of Entomology
Abstract:: The so-called powder-post injury to seasoned wood has attracted much attention in America, and especially in Europe for centuries, and has been the subject of published articles in many languages. This peculiar injury seems to be on the increase in the United States and numerous requests from a number of...
Resource Type:: Technical Report
Full Text:: CIRCULAR No. 55. United States Department of Agriculture, DIVISION

Creator:: Chittenden, F. H. (Frank Hurlbut), 1858-1929 and United States. Division of Entomology
Abstract:: Recent years have witnessed extensive destruction of forest growth, particularly of pine, spruce, and chestnut, in portions of the United States east of the Rocky Mountains. This injury has been very generally attributed to insects, and there is evidence that certain wood and bark-boring species have largely contributed to the...
Resource Type:: Technical Report
Full Text:: Agriculture, DIVISION OF ENTOMOLOGY. THE TWO-LINED CHESTNUT BORER. (Agrilus bilineatus Weber. ) RECENT

Creator:: United States. Division of Forestry
Resource Type:: Technical Report
Full Text:: of that which the redwoods cover exclusively. We are quite unable to state the number of square miles

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