Illinois biological monographs - University of Illinois at Urbana-Champaign. (Univ. of Illinois Press, 1923)

Illustrierte Wochenschrift für Entomologie - Berliner Entomologische Gesellschaft. (J. Neumann, 1896)

Illustriertes Handwörterbuch der Botanik - Linsbauer, Karl, 1872 -1934 (W. Engelmann, 1917)

Illustriertes Jahrbuch der Naturkunde (Karl Prochaska, 1911)

An index to circulars 1 to 100 of the Bureau of Entomology - United States. Bureau of Entomology. (U.S. Dept. of Agriculture, Bureau of Entomology, 1911)

Index to information on insects associated with western wildland shrubs - Nelson, David L. (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1988)

Index to the literature of American economic entomology - American Association of Economic Entomologists (American Association of Economic Entomologists [etc.], 1905)

Index to the literature of American economic entomology - American Association of Economic Entomologists (American Association of Economic Entomologists [etc.], 1915)

Informe que la Comision para el estudio de los medios mas adecuados para la destruccion de la langosta rinde á la Secretaría de fomento - Mexico. Comisión para la Destrucción de la Langosta. (Impr. de F. Diaz de Leon, 1883)

Injurious insects and useful birds, successful control of farm pests - Washburn, F. L. (Frederic Leonard), 1860 -1927 (J. B. Lippincott, 1918)

Injurious insects and useful birds, successful control of farm pests - Washburn, F. L. (Frederic Leonard), 1860 -1927 (J.B Lippincott company, 1918)

Injurious insects : how to recognize and control them - O'Kane, Walter Collins, 1877 - (Macmillan, 1912)

Injurious insects; how to recognize and control them - O'Kane, Walter Collins, 1877 - (The Macmillan company, 1912)

The insect enemies of the cotton boll weevil - Pierce, W. Dwight (William Dwight), 1881 -1967 (Govt. print. off, 1912)

Insect injurious to staple crops - Sanderson, Dwight, 1878 -1944 (J. Wiley & sons, inc.; [etc., etc.], 1902)

Insect life - Ealand, C. A. (Charles Aubrey), 1877 - (A. & C. Black, ltd, 1921)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1922)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1923)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1925)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1926)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1927)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1928)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1929)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1930)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1931)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1932)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1933)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1934)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1935)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1936)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1937)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1938)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1939)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1940)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1941)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1942)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1921)