A manual for the study of insects - Comstock, John Henry, 1849 -1931 (Comstock Publishing Company, 1916)

A manual for the study of insects - Comstock, John Henry, 1849 -1931 (The Comstock Pub. Co., 1920, 1920)

A manual for the study of insects - Comstock, John Henry, 1849 -1931 (Comstock Pub. Co, 1895)

A manual for the study of insects - Comstock, John Henry, 1849 -1931 (Comstock Pub. Co, 1930)

Maple Valley Iris Gardens, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Maple Valley Iris Gardens, 1935)

Maple Valley Iris Gardens, 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Maple Valley Iris Gardens, 1936)

Meddelanden af Societas pro Fauna et Flora Fennica - Societas pro Fauna et Flora Fennica (Societas, 1876)

Meddelanden af Societas pro Fauna et Flora Fennica - Societas pro Fauna et Flora Fennica ([Societas pro Fauna et Flora Fennica], 1918)

Meddelelser om Grønland - Denmark. Kommissionen for ledelsen af de geologiske og geografiske undersøgelser i Grønland. (C. A. Reitzels Forlag, 1918)

Memoirs of the Carnegie Museum - Carnegie Institute. Board of Trustees. (Published by the authority of the Board of Trustees of the Carnegie Institute, 1935)

Memorial of life and entomologic work of Joseph Albert Lintner ... state entomologist, 1874-98 - Felt, Ephraim Porter, 1868 -1943 (University of the State of New York, 1899)

Memorial of life and entomologic work of Joseph Albert Lintner, state entomologist, 1874-98 - Felt, Ephraim Porter, 1868 -1943 (University of the State of New York, 1899)

Mesozoic Coleoptera - Arnoldi, L. V. (Smithsonian Institution Libraries, 1992)

Mitteilungen der Münchner Entomologischen Gesellschaft - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1920)

Mitteilungen der Münchner Entomologischen Gesellschaft - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1929)

Mitteilungen der Schweizerischen Entomologischen Gesellschaft = Bulletin de la Société entomologique suisse - Schweizerische Naturforschende Gesellschaft. (Schweizerische Entomologische Gesellschaft, 1921)

Modern nature study : a first book for use in Canadian schools - Silcox, S. (Morang & Co, 1902)

Museum bulletin - New York State Museum. (University of the State of New York, 1908)

The mysteries of the flowers - Faulkner, Herbert Waldron, 1860 - (Frederick A. Stokes, 1917)

Nachrichtenblatt der Bayerischen Entomologen - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1976)

Nachrichtenblatt der Bayerischen Entomologen - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1977)

Naturae novitates : Bibliographie neuer Erscheinungen aller Länder auf dem Gebiete der Naturgeschichte und der exacten Wissenschaften (R. Friedländer & Sohn, 1881)

Naturae novitates : Bibliographie neuer Erscheinungen aller Länder auf dem Gebiete der Naturgeschichte und der exacten Wissenschaften (R. Friedländer & Sohn, 1899)

A natural history of the British butterflies ; their world-wide variation and geographical distribution. A text-book for students and collectors - Tutt, James William, 1858 -1911 (E. Stock, 1900)

A natural history of the British butterflies : their world-wide variation and geographical distribution. A text-book for students and collectors - Tutt, James William, 1858 -1911 (E. Stock, 1905)

A natural history of the British Lepidoptera : a text-book for students and collectors - Tutt, James William, 1858 -1911 (S. Sonnenschein, 1900)

A natural history of the British Lepidoptera : a text-book for students and collectors - Tutt, James William, 1858 -1911 (S. Sonnenschein, 1905)

A natural history of the British Lepidoptera : a text-book for students and collectors - Tutt, James William, 1858 -1911 (S. Sonnenschein, 1907)

A natural history of the British Lepidoptera : a text-book for students and collectors - Tutt, James William, 1858 -1911 (S. Sonnenschein, 1908)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1918)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1872)

Nature notes : Grand Teton National Park - United States. National Park Service. (United States Dept. of the Interior, National Park Service, Grand Teton National Park)

Nature's calendar - Ingersoll, Ernest, 1852 -1946 (Harper & Brothers, 1900)

Nature study and life - Hodge, Clifton F. (Clifton Fremont), 1859 -1919 (Ginn & Co, 1902)

Nature study and life - Hodge, Clifton F. (Clifton Fremont), 1859 -1919 (Ginn, 1902)

Nature study and life - Hodge, Clifton F. (Clifton Fremont), 1859 -1919 (Ginn & co, 1903)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1909)

New low prices and more hints on the joy, health and profit in growing iris and other gorgeous perennial flowers, also rockplants that bloom [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (A.B. Katkamier, 1931)

New, rare, and good old irises : an iris lover's guide and descriptive catalogue - Sheets, Earl Wooddell, 1886 - (Earl Wooddell Sheets, 1932)

New, rare, and good old irises and peonies : retail price list 1933 - Sheets, Earl Wooddell, 1886 - (Earl Wooddell Sheets, 1933)

New, rare, and good old irises : retail price list, summer 1932 - spring 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Earl Wooddell Sheets, 1932)

Nomenclator zoologicus. An alphabetical list of all generic names that have been employed by naturalists for recent and fossil animals from the earliest times to the close of the year 1879 ... - Scudder, Samuel Hubbard, 1837 -1911 (Govt. Print. Off, 1882)

Nomenclator zoologicus : continens nomina systematica generum animalium tam viventium quam fossilium, secundum ordinem alphabeticum disposita, adjectis auctoribus, libris, in quibus reperiuntur, anno editionis, etymologia et familiis, ad quas pertinent, in singulis classibus - Agassiz, Louis, 1807 -1873 (Jent et Gassmann, 1842)

Nomenclatoris zoologici index universalis : continens nomina systematica classium, ordinum, familiarum et generum animalium omnium ... homonymiis plantarum - Agassiz, Louis, 1807 -1873 (Sumptibus Jent et Gassman, 1848)

Nordens fjärilar : handbok i Sveriges, Norges, Danmarks och Finlands : Macrolepidoptera - Aurivillius, Chr. (Christopher), 1853 -1928 (Aktiebolaget Hiertas bokförlag, 1888)

Nota lepidopterologica - Societas Europaea Lepidopterologica (1988)

Nota lepidopterologica - Societas Europaea Lepidopterologica (1991)

Nota lepidopterologica - Societas Europaea Lepidopterologica (2013)

Note sur les variétés suédoises de la Brenthis selene (W. V.) / par Jacob Spångberg - Spångberg, Jacob, 1846 -1894 (P.A. Norstedt & So̊ner, 1878, 1878)

Occasional paper - Entomological Society of British Columbia (The Society, 1951)

Occasional paper - Entomological Society of British Columbia (The Society, 2015)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1975)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1878)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1900)

On a collection of butterflies - Butler, Arthur G. (Arthur Gardiner), 1844 -1925 (1880)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1958)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1932)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1933)

Papilio - Edwards, Henry, 1827 -1891 (New York Entomological Club, 1881)

Les papillons dans la nature : 64 planches en couleurs et monographies - Robert, Paul-A. (Éditions Delachaux and Niestlé, s.a, 1934)

Peonies and irises - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Home Garden Company, 1935)

Peonies and irises, 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Indian Spring Farms, Inc, 1929)

Peonies, irises, gladiolus - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Indian Spring Farms, Inc, 1930)

Peonies, irises, gladiolus - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Indian Spring Farms, Inc, 1931)

Peonies, irises, perennial plants, bird houses, 1934 ; Brook Gardens bird houses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Brook Gardens, 1934)

Peonies, irises, poppies : price list, 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (LeGron Floral Co, 1936)

Peonies, irises, poppies : price list, 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (LeGron Floral Co, 1937)

Peonies, irises, poppies : price list, 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (LeGron Floral Co, 1938)

Peonies, irises, poppies : price list, 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (LeGron Floral Co, 1939)

Petites nouvelles entomologiques (E. Deyrolle, 1869)

The Pfeiffer Nursery Catalog no. 33, supersedes all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pfeiffer Nursery, 1934)

The Pfeiffer Nursery Catalog no. 32, supersedes all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pfeiffer Nursery, 1933)

Pfeiffer's flower book, fall 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pfeiffer Nursery, 1936)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 1977)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 1980)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 1981)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 1985)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 2006)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 2000)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 2003)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 2009)

Polskie pismo entomologiczne = Polish journal of entomology = Bulletin entomologique de Pologne - Polski Zwiazek Entomologiczny (Panstwowe Wydawn. Naukowe, 1924)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1894)

Price list of choice irises with ratings, name of orginator and date of origin and brief descriptions : 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. Wayman, 1928)

Proceedings - Entomological Society of Canada (1863-1871) (Entomological Society of Ontario, 1900)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1968)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1976)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1978)

Proceedings and transactions of the Royal Society of Canada. Délibérations et mémoires de la Société royale du Canada - Royal Society of Canada. (Société royale du Canada, 1905)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1935)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1938)