Myths and Marvels of Astronomy By: Richard A. Proctor

National Geographic Magazine Vol. 01 No. 3 By: Various

National Geographic Magazine Vol. 01 No. 4 By: Various

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

National Strategy for Combating Terrorism September 2006 By: National Security Council (U.S.)

Native Son By: T. D. Hamm

Natural Science and Religion By: Asa Gray

Natural Theology By: William Paley

Nature Cure By: Henry Lindlahr

Nature Near London By: Richard Jefferies

Naudsonce By: H. Beam Piper

Navy Day By: Harry Harrison

Negro Laborer: A Word to Him By: William H. Councill

Neighbourhood – A Year’s Life in and About an English Village By: Tickner Edwardes

Nerves and Common Sense By: Annie Payson Call

New and Original Theories of the Great Physical Forces By: Henry Raymond Rogers

New Apples in the Garden By: Kris Neville

New observations on the natural history of bees By: François Huber

Next Door, Next World By: Robert Donald Locke

Night The Mountain Fell; The Story Of The Montana-Yellowstone Earthquake By: Edmund Christopherson

Nine Biological Lectures By: Various

No Animal Food and Nutrition and Diet with Vegetable Recipes By: Rupert H. Wheldon

No Hiding Place By: Richard R. Smith

No Moving Parts By: Murray F. Yaco

North American Medical and Surgical Journal, Vol. 2, No. 3, July, 1826 By: Various

North American Species of Cactus By: John Merle Coulter

North West Passage -The Gjöa Expedition 1903-1907 (Volume I) By: Roald Amundsen

North West Passage -The Gjöa Expedition 1903-1907 (Volume II) By: Roald Amundsen

Note on the Resemblances and Differences in the Structure and the Development of the Brain in Man and Apes By: Thomas Henry Huxley

Notes of An East Coast Naturalist By: Arthur Henry Patterson

Notes On Democracy By: H. L. Mencken

Notes on Nursing What It Is, and What It Is Not By: Florence Nightingale

Novice By: James H. Schmitz

Now We Are Three By: Joe L. Hensley

Null-ABC By: H. Beam Piper

Obed Hussey Who, of All Inventors, Made Bread Cheap By: Follett L. (Follett Lamberton) Greeno

Object Lessons on the Human Body A Transcript of Lessons Given in the Primary Department of School No. 49, New York City By: Margaret W. Lewis

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

Occasion for Disaster By: Randall Garrett

Ocean of Air - Meteorology for Beginners By: Agnes Giberne

Ocean Steam Navigation and the Ocean Post By: Thomas Rainey

Ocean: A General Account Of The Science Of The Sea By: John Murray

Of Natural and Supernatural Things Also of the first Tincture, Root, and Spirit of Metals and Minerals, how the same are Conceived, Generated, Brought forth, Changed, and Augmented. By: Basilius Valentinus

Of Time and Texas By: William F. Nolan

Off Course By: Mack Reynolds

Ohio Biological Survey, Bull. 10, Vol. 11, No. 6 The Ascomycetes of Ohio IV and V By: Bruce Fink

Old English Patent Medicines in America By: George B. Griffenhagen

Old Rambling House By: Frank Herbert

Omega, the Man By: Lowell Howard Morrow

On Books and the Housing of Them By: William E. Gladstone

On Handling the Data By: M. I. Mayfield

On Some Fossil Remains of Man By: Thomas Henry Huxley

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

On the Antiquity of the Chemical Art By: James Mactear

On the Genesis of Species By: St. George Jackson Mivart

On the Method of Zadig By: Thomas Henry Huxley

On the Origin of Species: or, the Causes of the Phenomena of Organic Nature By: Thomas Henry Huxley

On the Parts of Animals By: Aristotle

On the Reception of the 'Origin of Species' By: Thomas Henry Huxley

On the Relations of Man to the Lower Animals By: Thomas Henry Huxley

On the Significance of Science and Art By: Leo Tolstoy

On the Study of Zoology By: Thomas Henry Huxley

On the uncertainty of the signs of murder in the case of bastard children By: William Hunter

On the Various Forces of Nature By: Michael Faraday

On War By: Carl von Clausewitz

One Hundred Proofs That the Earth Is Not a Globe By: William Carpenter

One Martian Afternoon By: Tom Leahy

One Out of Ten By: J. Anthony Ferlaine

One-Shot By: James Blish

Oneness By: James H. Schmitz

Ontario Teachers' Manuals: Nature Study By: Ontario. Ministry of Education

Operation Earthworm By: Joe Archibald

Operation Haystack By: Frank Herbert

Operation Lorelie By: William P. Salton

Operation R.S.V.P. By: H. Beam Piper

Optical Projection Part 1: Projection of Lantern Slides By: Russell S. Wright

Oracles of Nostradamus By: Charles A. Ward

Organic Evolution By: Richard Swann Lull

Organic Syntheses By: James Bryant Conant

Origin and Nature of Emotions By: George W. (Washington) Crile

Origin of Species By: Thomas Henry Huxley

Other Worlds Their Nature, Possibilities and Habitability in the Light of the Latest Discoveries By: Garrett Putman Serviss

Our Atomic World: The Story of Atomic Energy By: C. Jackson Craven

Our Bird Comrades By: Leander S. Keyser

Our Common Insects A Popular Account of the Insects of Our Fields, Forests, Gardens and Houses By: Alpheus S. Packard

Our Feathered Friends By: Elizabeth Grinnell

Our Friend the Dog By: Maurice Maeterlinck

Out Around Rigel By: Robert H. Wilson

Out Like a Light By: Randall Garrett

Out of This World Convention By: Forrest J. Ackerman

Outline of Science, Vol 4 By: J. Arthur Thomson

Outlines of a Mechanical Theory of Storms Containing the True Law of Lunar Influence By: Thomas Bassnett

Outlines of Dairy Bacteriology, 8th edition A Concise Manual for the Use of Students in Dairying By: H. L. (Harry Luman) Russell

Outlines of Greek and Roman Medicine By: James Elliott

Outlines of Lessons in Botany, Part I; from Seed to Leaf By: Jane H. Newell

Pandemic By: Jesse F. Bone

Papers on Health By: John Kirk

Passages from the Life of a Philosopher By: Charles Babbage

Personal Experience of a Physician By: John Ellis

Personal Recollections, from Early Life to Old Age, of Mary Somerville By: Mary Somerville