. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. DTV. INSECTS, U. S. DEPARTMENT OF AGRICULTURE, BUREAU OF ENTOMOLOGY—BULLETIN No. 90, Part II. L. O. HOWARD, Entomologist and Chief of Bureau. HYDROCYANIC-ACID gas fumigation IN CALIFORNIA. THE VALUE OF SODIUM CYANID FOR FUMIGATION PURPOSES. BY R. S. YTOGLUM, M. S. A., Special Field Agent. Bureau of Entomology. Issued May 10, / &3 WASHINGTON: GOVERNMENT PRINTING OFFICE. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - col
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. DTV. INSECTS, U. S. DEPARTMENT OF AGRICULTURE, BUREAU OF ENTOMOLOGY—BULLETIN No. 90, Part II. L. O. HOWARD, Entomologist and Chief of Bureau. HYDROCYANIC-ACID gas fumigation IN CALIFORNIA. THE VALUE OF SODIUM CYANID FOR FUMIGATION PURPOSES. BY R. S. YTOGLUM, M. S. A., Special Field Agent. Bureau of Entomology. Issued May 10, / &3 WASHINGTON: GOVERNMENT PRINTING OFFICE. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Bureau of Entomology. Washington : G. P. O.
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