 Reports of Observations and Experiments in the Practical Work of the Division Made under the Direction of the Entomologist.  Archiv für Naturgeschichte1893전체보기 - 도서 정보
 | United States. Department of Agriculture - 1893 - 862 페이지
...during the year have been, in addition to the regular issue of Insect Life, a bulletin consisting of reports of observations and experiments in the practical work of the division, and another presenting reports on the damage by destructive locusts during the season of 1891. DIVISION... | |
 | United States. Office of Experiment Stations - 1893 - 1232 페이지
...and spring wheat, oats, rye, barley, potatoes, tobacco, the grasses, fruits, and other minor crops." Reports of observations and experiments in the practical work of the Division of Entomology (Division of Entomology, Bui. Xo.2i;,pp. 95). — This bulletin comprises the reports... | |
 | State Library of Massachusetts - 1893 - 256 페이지
...The boll worm ot cotton. A report of progress in a supplem ntary investigation of this insect. 26. Reports of observations and experiments in the practical work of the Division. 27. Reports on the damage by destructive locusts, 1891. — Periodical bulletin. Oct 1891— Aug. 1892.... | |
 | 1893 - 244 페이지
...1885. (13) Reports of Observations and Experiments in the Practical Work of the Division (1887). (14) Reports of Observations and Experiments in the Practical Work of the Division (1887). (15) The Icerya or Fluted Scale. (16) The Entomological Writings of Dr. Alpheus Spring Packard,... | |
 | United States. Department of Agriculture - 1894 - 56 페이지
...the Fluted Scale. By Albert Koebele. Pp. 32, figs. 16. February, 1890. Entomological Bulletin No. 22. Reports of Observations and Experiments in the Practical Work of the Division, made under the Direction of the Entomologist. Pp. 110, figs. 2. June, 1890. Entomological Bulletin... | |
 | Indian Museum. Library - 1894 - 218 페이지
...Entomologist to investigate the Natural Enemies of the Fluted Scale. KOEBELE, Albert. „ t2. 1890. Reports of Observations and Experiments in the practical work of the division. RILEY, CV „ 13. 1891. Reports of Observations and Experiments in the practical work of the Division.... | |
 | 1894 - 594 페이지
...Miscellaneous Papers on Cane disease. By United States Department of Agriculture, Division of Entomology : Reports of observations and experiments in the practical work of the Division. Experiment Station Record Vol. VI Nos. 8-10. By Supt. Botanic Gardens, Trinidad : Annual Report for... | |
 | Massachusetts - 1894 - 630 페이지
...locusts of America north of Mexico. 29. »l:>lr< . l . \'. , Report on the Doll worm of cotton. SO. Reports of observations and experiments in the practical work of the division, made under the direction of the Entouiologl st. Periodical bulletin. Sept. 1892— July 1893. Insect... | |
 | Washington Government Printing Office - 1894 - 656 페이지
...(Heliothis armiger Hiibn.), made under the Direction of the Entomologist, by FW Mally; Bulletin No. 30, Reports of Observations and Experiments in the Practical Work of the Division, made under the Direction of the Entomologist; Bulletin No. 31, Catalogue of the Exhibit of Economic... | |
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