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Laboratory Manual of Glass-Blowing

Langley Memoir on Mechanical Flight, Parts I and II Smithsonian Contributions to Knowledge, Volume 27 Number 3, Publication 1948, 1911

Lasers

Le Circuit de l'Est [programme]

Le Dictionnaire du NEF

Le Projet Gutenberg (1971-2005)

Le Téléphone, le Microphone et le Phonographe

Lead Smelting and Refining, With Some Notes on Lead Mining

Learning to fly in the U.S. Army

Learning to Fly: A Practical Manual for Beginners

Leather: From the Raw Material to the Finished Product

Lecture on Artificial Flight Given by request at the Academy of Natural Sciences

Lectures in Navigation

Lectures on popular and scientific subjects

Leonardo da Vinci als Ingenieur und Philosoph Ein Beitrag zur Geschichte der Technik und der induktiven Wissenschaften

Leonardo da Vinci, Pathfinder of Science

Les Merveilles de la Locomotion

Les règles de Cicco Simonetta pour le déchiffrement des écritures secrètes

Lessons in Wireless Telegraphy

Letters of a Radio-Engineer to His Son

Lichtbild- und Kino-Technik Lichtbühnen-Bibliothek Nr. 1

Life of Richard Trevithick, with an Account of His Inventions. Volume 2 (of 2)

Life of Robert Stevenson, Civil Engineer

Light and Colour Theories, and their relation to light and colour standardization

Lighthouses and Lightships A Descriptive and Historical Account of Their Mode of Construction and Organization

Lightning Conductors: Their History, Nature, and Mode of Application

Lightning Rod Conference Report of the Delegates from the Following Societies, Viz.: Meteorological Society, Royal Institute of British Architects, Society of Telegraph Engineers and of Electricians, Physical Society. With a Code of Rules for the Erection of Lightning Conductors; and Various Appendices

Lightning, Thunder and Lightning Conductors

Lightships and Lighthouses

Linotype Manual Giving Detailed Instructions of the Proper Adjustment and Care of the Linotype

Linotype mechanism

Lippincott's Magazine of Popular Literature and Science, Volume 11, No. 22, January, 1873

Little Masterpieces of Science: Invention and Discovery

Lives of Boulton and Watt. Principally from the Original Soho Mss. Comprising also a history of the invention and introduction of the steam engine

Lives of the Engineers The Locomotive. George and Robert Stephenson

Locomotive Engine Running and Management

LRL Accelerators, The 184-Inch Synchrocyclotron

Machines at Work

Makers of Many Things

Manual for submarine mining

Manuel complet des fabricans de chapeaux en tous genres

Manuel da Maya e os engenheiros militares portugueses no Terramoto de 1755

Manufacturing Cost Data on Artificial Ice

Mariner Mission to Venus

Marvel Carbureter and Heat Control As Used on Series 691 Nash Sixes Booklet S

Marvels of Modern Science

Marvels of Scientific Invention An Interesting Account in Non-Technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-Date Smelting, Freezing, Colour Photography, and Many Other Recent Discoveries of Science

Masters of space

Material Classification Recommended by the Railway Storekeepers' Association