Carbon Dioxide and Chimney Losses
Their Real Relation
Volume 68, Issue 1752supp
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Features
Drawing an Ellipse with Compasses
Is a Sense of Space Acquired?
Our Perception and Estimation of Areas and Distances
Intermittent Springs
The Invention of the Pantograph
Christoph Scheiner's Wonderful Device
Fireproofing Wood and Textiles
Some New Inventions and Formulæ
Paint for Iron Ships
The Costliest Railroad in America
A New Railroad that Cost more than Thirty Million Dollars
Manufacture of Enameled Leather
A Handy Screw-Driver
A New Printer's Roller Mass
The Microscope in Engineering
The Study of Faulty Metals
Liquefied Illuminating and Fuel Gas
More about Blau Gas
The Thousandth Part of a Second
Animal Filters and Strainers
The Mechanical Equivalents of Nature
Nature's Traps
A Novel Process for Softening Water
Algebraic Symbolism
Its Development from Paciuolo to Newton