Selenium cells: the construction, care and use of selenium cells with special reference to the Fritts cell

Color Images from Mars Rovers Spirit and Opportunity

Bob Webster

Bob Webster’s Color Images from Mars Rovers is a visual‑focused nonfiction work that assembles NASA’s raw…

Concrete Construction: Methods and Costs

Gillette, Halbert Powers; Hill, Charles Shattuck

The book is a technical manual on the calculation of cement, sand, and aggregate quantities for mortars and…

The British battle fleet, Vol. 2 (of 2): Its Inception and Growth Throughout the Centuries to the Present Day

Fred T. Jane

The work is a detailed historical survey of Britain’s naval battle‑fleet development, focusing on the…

Practical Mechanics for Boys

James Slough Zerbe

Practical Mechanics for Boys is a hands‑on manual that sets out, in plain language, the fundamentals of…

Mechanical Drawing Self-Taught Comprising instructions in the selection and preparation of drawing instruments, elementary instruction in practical mechanical drawing; Together with Examples in Simple Geometry and Elementary Mechanism, Including Screw Threads, Gear Wheels, Mechanical Motions, Engines and Boilers

Joshua Rose

Mechanical Drawing Self‑Taught is a practical handbook that walks the reader through the selection and…

The Notebooks of Leonardo Da Vinci — Complete

da Vinci Leonardo

The volume is a facsimile of Leonardo da Vinci’s own handwritten treatises on optics, collected under the…