Table of contents

Vermont Gold - p9

doi:10.1038/scientificamerican09231854-9a

Sawing Fire Wood - p9

doi:10.1038/scientificamerican09231854-9b

Colt's Revolvers in London - p9

doi:10.1038/scientificamerican09231854-9c

New Material for Paper - p9

doi:10.1038/scientificamerican09231854-9d

To Clean Brass - p9

doi:10.1038/scientificamerican09231854-9e

Rotary Pump and Engine - p9

doi:10.1038/scientificamerican09231854-9f

King Snakes and Rattle Snakes - p10

doi:10.1038/scientificamerican09231854-10

Welding Steel on Shears' Blades - p10

doi:10.1038/scientificamerican09231854-10a

Condensed Air as a Motive Agent - p10

doi:10.1038/scientificamerican09231854-10b

The Water Wheel Challenge - p10

doi:10.1038/scientificamerican09231854-10c

Water Wheel Challenge - p10

doi:10.1038/scientificamerican09231854-10d

Remarkable Spring - p10

doi:10.1038/scientificamerican09231854-10e

Great Railroad Bridge—Maine Mechanics Association - p10

doi:10.1038/scientificamerican09231854-10f

To Mechanics—The Scientific American - p10

doi:10.1038/scientificamerican09231854-10g

Coal—New Sources—Consumption - p10

doi:10.1038/scientificamerican09231854-10h

Locomotive Performances - p11

doi:10.1038/scientificamerican09231854-11

Engineering Experiment—Testing an Engine - p11

doi:10.1038/scientificamerican09231854-11a

The Copper Mines of Lake Superior - p11

doi:10.1038/scientificamerican09231854-11b

New Marine Engines - p11

doi:10.1038/scientificamerican09231854-11c

Coal - p11

doi:10.1038/scientificamerican09231854-11d

Foreign Crops - p11

doi:10.1038/scientificamerican09231854-11e

Explosion of a Boiler - p11

doi:10.1038/scientificamerican09231854-11f

Discoveries in Metals - p11

doi:10.1038/scientificamerican09231854-11g

Machine for Cutting Leather - p12

doi:10.1038/scientificamerican09231854-12

Sectional Floating Dock - p12

doi:10.1038/scientificamerican09231854-12a

Improved Slate Frame - p12

doi:10.1038/scientificamerican09231854-12b

Warming Buildings - p12

doi:10.1038/scientificamerican09231854-12c

Corrugated Locomotive Tank - p12

doi:10.1038/scientificamerican09231854-12d

Slide Valves of Steam Engines - p12

doi:10.1038/scientificamerican09231854-12e

Hot Air Furnace - p12

doi:10.1038/scientificamerican09231854-12f

Bird's Patent Steam Boiler - p12

doi:10.1038/scientificamerican09231854-12g

Delays are Dangerous - p13

doi:10.1038/scientificamerican09231854-13

Theory of Storms—Predictions of the Weather - p13

doi:10.1038/scientificamerican09231854-13a

Gas from Wood - p13

doi:10.1038/scientificamerican09231854-13b

The Smithsonian Institute Again - p13

doi:10.1038/scientificamerican09231854-13c

Clubs and Prizes - p13

doi:10.1038/scientificamerican09231854-13d

The People's Journal - p13

doi:10.1038/scientificamerican09231854-13e

Chicago Mechanics' Fair - p13

doi:10.1038/scientificamerican09231854-13f

Beautiful Impressions - pp13 - 14

doi:10.1038/scientificamerican09231854-13g

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Foreign Items of Science and Art - p14

doi:10.1038/scientificamerican09231854-14

Remedy for Yellow Fever - p14

doi:10.1038/scientificamerican09231854-14a

Camphor Insanity - p14

doi:10.1038/scientificamerican09231854-14b

Great Subterranean Road - p14

doi:10.1038/scientificamerican09231854-14c

Roofs of Houses - p14

doi:10.1038/scientificamerican09231854-14d

Gore's Patent Butter Worker - p14

doi:10.1038/scientificamerican09231854-14e

List of Patent Claims - p14

doi:10.1038/scientificamerican09231854-14f

To Correspondents - p15

doi:10.1038/scientificamerican09231854-15

PDF (596 KB)

Important Items - p15

doi:10.1038/scientificamerican09231854-15a

PDF (596 KB)

California Academy of Natural Sciences - p16

doi:10.1038/scientificamerican09231854-16

Explosive Burning Fluids - p16

doi:10.1038/scientificamerican09231854-16a

To Clean Silver Plate - p16

doi:10.1038/scientificamerican09231854-16b

Clocks - p16

doi:10.1038/scientificamerican09231854-16c

Mechanics - p16

doi:10.1038/scientificamerican09231854-16d

Potato Digger - p16

doi:10.1038/scientificamerican09231854-16e

Brown and Boeklen's Improved Bottle for Effervescent Drinks - p16

doi:10.1038/scientificamerican09231854-16f