Junior Achievement By: William M. Lee

Kari the Elephant By: Dhan Gopal Mukerji

Keep Out By: Fredric Brown

Kindness to Animals Or, The Sin of Cruelty Exposed and Rebuked By: Unknown

Kinematics of Mechanisms from the Time of Watt By: Eugene S. Ferguson

Kings in Exile By: Charles George Douglas Roberts

Laboratory Manual of Glass-Blowing By: Francis C. (Francis Cowles) Frary

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 Clara Barton - Volume 1 By: William E. Barton

Life of Clara Barton - Volume 2 By: William E. Barton

Life of Dorothea Lynde Dix By: Francis Tiffany

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

Little Masterpieces of Science - The Skies and The Earth By: George Iles

Little Wanderers By: Margaret Warner Morley

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 Labour and the London Poor Volume I By: Henry Mayhew

London Labour and the London Poor Volume II By: Henry Mayhew

London Labour and the London Poor Volume III By: Henry Mayhew

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