The dying hickory and oak trees on Long Island, New York
Subtitle: Objects and results of investigations
By: A. D. Hopkins
Contributors: United States. Bureau of Entomology; United States. Bureau of Entomology and Plant Quarantine
Series: Forest entomology brief -- B; Forest entomology brief -- B.
Publisher: U.S. Dept. of Agriculture, Bureau of Entomology
Published: 1916
Place of publication: Washington, D.C
Language: eng
Subjects: Hickories; Diseases and pests; Research; Oak
Notes: "E-68."

"June 20, 1916."