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The Observers By: G. L. Vandenburg

The Enclosures in England An Economic Reconstruction By: Harriett Bradley

The Social Work of the Salvation Army By: Edwin Gifford Lamb

At the Deathbed of Darwinism A Series of Papers By: Eberhard Dennert

More Hunting Wasps By: Jean-Henri Fabre

Life of Charles Darwin By: G. T. (George Thomas) Bettany

The Log of the Sun A Chronicle of Nature's Year By: William Beebe

The Value of Zeta(3) to 1,000,000 places By: Simon Plouffe

The Negro Farmer By: Carl Kelsey

National Strategy for Combating Terrorism February 2003 By: United States. Executive Office of the President

The Philosophy of Evolution Together With a Preliminary Essay on The Metaphysical Basis of Science By: Stephen H. (Stephen Haskins) Carpenter

A Plea for the Criminal Being a reply to Dr. Chapple's work: 'The Fertility of the Unfit', and an Attempt to explain the leading principles of Criminological and Reformatory Science By: James Leslie Allan Kayll

The Harris-Ingram Experiment By: Charles E. (Charles Edward) Bolton

The Naturalist in Nicaragua By: Thomas Belt

The Present Condition of Organic Nature By: Thomas Henry Huxley

Hold Up Your Heads, Girls! : Helps for Girls, in School and Out By: Annie H Ryder

The War of the Wenuses By: Edward V. Lucas

Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology By: Linnean Society of London

Forest Neighbors Life Stories of Wild Animals By: William Davenport Hulbert

Gambia By: Frederick John Melville

The True Story of the American Flag By: John Henry Fow

Essays; Political, Economical, and Philosophical — Volume 1 By: Benjamin Rumford

Origin of Species By: Thomas Henry Huxley

Field Trip By: Gene Hunter

On the Advisableness of Improving Natural Knowledge By: Thomas Henry Huxley

Comments on the Taxonomy and Geographic Distribution of Some North American Rabbits By: E. Raymond (Eugene Raymond) Hall

The Terrible Answer By: Arthur G. Hill

Freedom in Science and Teaching. from the German of Ernst Haeckel By: Ernst Heinrich Philipp August Haeckel

The Girl Scouts: A Training School for Womanhood By: Kate Douglas Smith Wiggin

Q. E. D., or New Light on the Doctrine of Creation By: George McCready Price

As a Matter of Course By: Annie Payson Call

Development of the Digestive Canal of the American Alligator By: A. M. (Albert Moore) Reese

The Squirrels and other animals Illustrations of the habits and instincts of many of the smaller British quadrupeds By: George E. Waring

Nature Near London By: Richard Jefferies

The Young Maiden By: A. B. (Artemas Bowers) Muzzey

The Scientific Evidences of Organic Evolution By: George John Romanes

The Gaming Table: Its Votaries and Victims Volume I (of II) By: Andrew Steinmetz

Girls and Women By: Harriet E. (Harriet Eliza) Paine

Kings in Exile By: Charles George Douglas Roberts

The Case of Summerfield By: W. H. (William Henry) Rhodes

How to Marry Well By: Unknown

The Third Great Plague A Discussion of Syphilis for Everyday People By: John H. (John Hinchman) Stokes

Observations on the Causes, Symptoms, and Nature of Scrofula or King's Evil, Scurvy, and Cancer With Cases Illustrative of a Peculiar Mode of Treatment By: John Kent

Health on the Farm A Manual of Rural Sanitation and Hygiene By: H. F. (Henry Fauntleroy) Harris

Proserpina, Volume 2 Studies of Wayside Flowers, While the Air was Yet Pure Among the Alps and in the Scotland and England Which My Father Knew By: John Ruskin

Pioneer Surgery in Kentucky A Sketch By: David Wendel Yandell

The Passing of Ku Sui By: Anthony Gilmore

Personal Experience of a Physician By: John Ellis

White Slaves; or, the Oppression of the Worthy Poor By: Louis Albert Banks

Educational Work of the Boy Scouts By: Lorne W. (Lorne Webster) Barclay

Genera and Subgenera of Chipmunks By: John A. White

The Nests and Eggs of Indian Birds, Volume 1 By: Allan Octavian Hume

The Wonder By: John D. Beresford

Squirrels and Other Fur-Bearers By: John Burroughs

The Reminiscences of an Astronomer By: Simon Newcomb

The Rural Motor Express To Conserve Foodstuffs and Labor and to Supply Rural Transportation. By: United States. Council of National Defense. Highways Transport Committee

The Next Step A Plan for Economic World Federation By: Scott Nearing

Doctor Jones' Picnic By: S. E. (Samuel E.) Chapman

Priestley in America 1794-1804 By: Edgar Fahs Smith