Lamarck, the Founder of Evolution His Life and Work By: Alpheus S. Packard

Landholding in England By: Joseph Fisher

Lasers By: Hal Hellman

Last Resort By: Stephen Bartholomew

Laws By: Plato

Lay Sermons, Addresses and Reviews By: Thomas Henry Huxley

Lease to Doomsday By: Lee Archer

Lectures and Essays By: Thomas Henry Huxley

Lectures and Essays By: Thomas Henry Huxley

Lectures on Evolution By: Thomas Henry Huxley

Lectures on Land Warfare; A tactical Manual for the Use of Infantry Officers By: Anonymous

Lectures on Stellar Statistics By: C. V. L. (Carl Vilhelm Ludwig) Charlier

Legends of Old Honolulu By: William Drake Westervelt

Lessons of the war with Spain and other articles By: A. T. Mahan

Let's Collect Rocks and Shells By: Shell Union Oil Corporation

Letter of the Law By: Alan Edward Nourse

Letters on the Cholera Morbus By: William Fergusson

Library of Congress Workshop on Etexts By: Library of Congress

Life and Letters of Charles Darwin By: Charles Darwin

Life and Letters of Thomas Henry Huxley — Volume 1 By: Thomas Henry Huxley

Life and Letters of Thomas Henry Huxley — Volume 2 By: Thomas Henry Huxley

Life History of the Kangaroo Rat By: Walter P. (Walter Penn) Taylor

Life of a Fossil Hunter By: Charles Sternberg

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

Life of the Fly, With Which are Interspersed Some Chapters of Autobiography By: Jean-Henri Fabre

Life Sentence By: James V. McConnell

Light Science for Leisure Hours By: Richard A. Proctor

Lighter Than You Think By: Nelson Slade Bond

Little Brothers of the Air By: Olive Thorne Miller

Little Masterpieces of Science - Mind By: George Iles

Lives of the Most Remarkable Criminals Who have been Condemned and Executed for Murder, the Highway, Housebreaking, Street Robberies, Coining or other offences By: Arthur L. Hayward

Lola or, The Thought and Speech of Animals By: Henny Kindermann

London (Ancient And Modern) From The Sanitary And Medical Point Of View By: George Vivian Poore

London's Underworld By: Thomas Holmes

Lonesome Hearts By: Russell R. Winterbotham

Long Ago, Far Away By: Murray Leinster

Longevity By: Therese Windser

Looking Backward 2000-1887 By: Edward Bellamy

Loot of the Void By: Edwin K. Sloat

Lords of the Stratosphere By: Arthur J. Burks

Lost in the Future By: John Victor Peterson

Lost in Translation By: Laurence M. Janifer

Louis Agassiz as a Teacher; illustrative extracts on his method of instruction By: Lane Cooper

Louis Agassiz: His Life and Correspondence By: Louis Agassiz

Love's Meinie Three Lectures on Greek and English Birds By: John Ruskin

Love—Marriage—Birth Control Being a Speech delivered at the Church Congress at Birmingham, October, 1921 By: Bertrand Edward Dawson Dawson

Machiavelli, Volume I By: Niccolò Machiavelli

Made in Tanganyika By: Carl Richard Jacobi

Making Both Ends Meet The income and outlay of New York working girls By: Edith Wyatt

Mammals Obtained by Dr. Curt von Wedel from the Barrier Beach of Tamaulipas, Mexico By: E. Raymond (Eugene Raymond) Hall

Man in the Iron Mask (an Essay) By: Alexandre Dumas

Man Made By: Albert Teichner

Man of Genius By: Cesare Lombroso

Manhood Perfectly Restored Prof. Jean Civiale's Soluble Urethral Crayons as a Quick, Painless, and Certain Cure for Impotence, Etc. By: Civiale Remedial Agency

Mankind in the Making By: H. G. Wells

Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. By: Alexander Miles

Marine Protozoa from Woods Hole Bulletin of the United States Fish Commission 21:415-468, 1901 By: Gary N. (Gary Nathan) Calkins

Marion Harland's Complete Etiquette By: Marion Harland

Marriage and Love By: Emma Goldman

Marriage Enrichment Retreats Story of a Quaker Project By: D. R. (David Robert) Mace

Mars and Its Canals By: Percival Lowell

Martians Never Die By: Lucius Daniel

Martyrs of Science, or, the Lives of Galileo, Tycho Brahe, and Kepler By: David Brewster

Marvels of Scientific Invention By: Thomas W. Corbin

Mason-Bees By: Jean-Henri Fabre

Masonic Monitor of the Degrees of Entered Apprentice, Fellow Craft and Master Mason together with the Ceremony of Installation, Laying Corner Stones, Dedications, Masonic Burial, Etc. By: George Thornburgh

Master of None By: Neil Goble

McIlvaine's Star By: August William Derleth

Measles By: William Colby Rucker

Measure for a Loner By: Jim Harmon

Medal of Honor By: Mack Reynolds

Medicine in Virginia, 1607-1699 By: Thomas Proctor Hughes

Medicine-Men Of The Apache By: John Gregory Bourke

Meeting of the Board By: Alan Edward Nourse

Memoir and Correspondence of Caroline Herschel By: Margaret Herschel

Men Women and God By: Arthur Herbert Gray

Mendelism Third Edition By: Reginald Crundall Punnett

Mental Defectives and Sexual Offenders Report of the Committee of Inquiry Appointed by the Hon. Sir Maui Pomare, K.B.E., C.M.G., Minister of Health By: New Zealand. Committee of Inquiry into Mental Defectives and Sexual Offenders

Method By Which the Causes of the Present and Past Conditions of Organic Nature Are to Be Discovered — the Origination of Living Beings By: Thomas Henry Huxley

Mezzerow Loves Company By: Floyd L. Wallace

Military Instructors Manual By: J. P. (James Perry) Cole

Millennium By: Everett B. Cole

Minor Detail By: Jack Sharkey

Miscellanea Curiosa, Vol 1 By: Edmond Halley

Miscellaneous Mathematical Constants By: Simon Plouffe

Modern Women and What is Said of Them A Reprint of A Series of Articles in the Saturday Review (1868) By: Elizabeth Lynn Linton

Modus Vivendi By: John Berryman

Moment of Truth By: Basil Wells

Monkey On His Back By: Charles V. De Vet

Monopolies and the People By: Charles Whiting Baker

Moral Principles and Medical Practice The Basis of Medical Jurisprudence By: Charles Coppens

Morale A Story of the War of 1941-43 By: Murray Leinster

Morals and Dogma of the Ancient and Accepted Scottish Rite of Freemasonry By: Albert Pike

More Hunting Wasps By: Jean-Henri Fabre

More Letters of Charles Darwin By: Charles Darwin

More Science From an Easy Chair By: E. Ray (Edwin Ray) Lankester

Mother America By: Sam McClatchie

Mother Earth Land Grants in Virginia 1607-1699 By: Walter Stitt Robinson

Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada By: Thomas Jefferson Ritter

Mr. Chipfellow's Jackpot By: Dick Purcell