Improved Milling Machine, The American Fur Trade, and more

Miscellaneous Summary

Exploded Gun

Colburn's Lamp Filler

Sugar in England

Opening of a New Campaign

Lake Superior Copper Workings

Prevention of Danger From Petroleum

Steam on City Railroads

The End of a Blockade Runner

Lead and Water

Great Telescope and Photographs of the Moon

Patents Claims

Issued from the United States Patent-Office

Recent American Patents

To Our Readers