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• Pleistocene Pocket Gophers From San Josecito Cave, Nuevo Leon, MexicoRobert J. Russell
• The Old Willow Tree, and Other StoriesCarl Ewald
• 1931: A Glance at the Twentieth CenturyHenry Hartshorne
• A New Species of Frog (Genus Tomodactylus) from Western MéxicoRobert G. Webb
• Tratado das Cores Que consta de tres partes: analytica, synthetica, hermeneuticaDiogo de Carvalho e Sampaio
• Time and Tide by Weare and Tyne Twenty-five Letters to a Working Man of Sunderland on the Laws of WorkJohn Ruskin
• A New Subspecies of Bat (Myotis velifer) from Southeastern California and ArizonaTerry A. Vaughan
• The Genera of Phyllomedusine Frogs (Anura: Hylidae)William Edward Duellman
• Geographic Distribution of the Pocket Mouse, Perognathus fasciatusJ. Knox Jones
• Natural History of the Brush Mouse (Peromyscus boylii) in Kansas With Description of a New SubspeciesCharles Alan Long
• The Gladiolus: A Practical Treatise on the Culture of the GladiolusMatthew Crawford
• Natural History of the Salamander, Aneides hardiiRichard F. Johnston
• Conspecificity of two pocket mice, Perognathus goldmani and P. artusE. Raymond Hall
• Old Plymouth TrailsWinthrop Packard
• The Book of Pears and Plums; With Chapters on Cherries and MulberriesEdward Bartrum
• Taxonomy of the Chipmunks, Eutamias quadrivittatus and Eutamias umbrinusJohn A. White
• Upon The Tree-TopsOlive Thorne Miller
• The Writings of Thomas Paine, Complete With Index to Volumes I - IVThomas Paine
• The Writings Of Thomas Paine, Volume III. 1791-1804Thomas Paine
• Mammals of the Grand Mesa, ColoradoSydney Anderson
• A Year in the FieldsJohn Burroughs
• Systematic Status of a South American Frog, Allophryne ruthveni GaigeJohn D. Lynch
• The Coming of Evolution: The Story of a Great Revolution in ScienceJohn W. Judd
• An Annotated Checklist of Nebraskan BatsOlin L. Webb
• Descriptions of Two Species of Frogs, Genus Ptychohyla Studies of American Hylid Frogs, VWilliam Edward Duellman
• Satan and the ComradesRalph Bennitt
• The Training of a ForesterGifford Pinchot
• Weird Tales. Vol. 1 (of 2)E. T. A. Hoffmann
• In-Door Gardening for Every Week in the Year Showing the Most Successful Treatment for all Plants Cultivated in the Greenhouse, ConservatoryWilliam Keane
• Miscellaneous Writings, 1883-1896Mary Baker Eddy
• Matter, Ether, and Motion: The Factors and Relations of Physical Science Rev. ed., enl.A. E. Dolbear
• Weird Tales, Vol. 2 (of 2)E. T. A. Hoffmann
• Mammals from Tamaulipas, MexicoRollin H. Baker
• Additional Records and Extensions of Known Ranges of Mammals from UtahStephen David Durrant
• Observations critiques sur l'archélogie dite préhistorique, spécialement en ce qui concerne la race celtique (1879)Félix Marie Louis Jean Robiou de La Tréhonnais
• The Baculum in the Chipmunks of Western North AmericaJohn A. White
• The Wailing Octopus: A Rick Brant Science-Adventure StoryHarold L. Goodwin
• Fishes of the Wakarusa River in KansasJames E. Deacon
• Peter Schlemihls wundersame GeschichteAdelbert von Chamisso
• Dick in the DesertJames Otis
• A Monograph on the Sub-class Cirripedia (Volume 1 of 2) The Lepadidae; Or, Pedunculated Cirripedesتشارلز داروين
• A Taxonomic Study of the Middle American Snake, Pituophis deppeiWilliam Edward Duellman
• A New Subspecies of Slider Turtle (Pseudemys scripta) from Coahuila, MéxicoJohn M. Legler
• Description of a New Softshell Turtle from the Southeastern United StatesRobert G. Webb
• A Brief History of Element Discovery, Synthesis, and AnalysisGlen W. Watson
• Volcanoes: Past and PresentEdward Hull
• Asparagus, its culture for home use and for market A practical treatise on the planting, cultivation, harvesting, marketing, and preserving F. M. Hexamer
• Recreations of Christopher North, Volume 1John Wilson
• The Serapion Brethren, Vol. IIE. T. A. Hoffmann
• Comments on the Taxonomic Status of Apodemus peninsulae, with Description of a New Subspecies from North ChinaJ. Knox Jones
• North American Yellow Bats, 'Dasypterus,' and a List of the Named Kinds of the Genus Lasiurus GrayE. Raymond Hall
• Noteworthy Mammals from Sinaloa, MexicoJ. Knox Jones
• The Social Direction of Evolution: An Outline of the Science of EugenicsWilliam E. Kellicott
• The PondCarl Ewald
• The Hills and the ValeRichard Jefferies
• The Apple The Kansas Apple, the Big Red Apple; the Luscious, Red-Cheeked First Love of the Farmer's Boy; the Healthful, Hearty Heart of the William H. Barnes
• Subspeciation in the Meadow Mouse, Microtus montanus, in Wyoming and ColoradoSydney Anderson
• O Oraculo do Passado, do presente e do Futuro (4/7) Parte Quarta: O oraculo das FloresBento Serrano
• O Oraculo do Passado, do presente e do Futuro (6/7) Parte Sexta: O oraculo da MagicaBento Serrano
• What bird is that?Frank M. Chapman