Proposed Process for the Fixation of Atmospheric Nitrogen. Two figures. Hallucinations. Perils of Base-ball Playing. Music Boxes. Electric Light Photography. Improved Beehive. Three engravings. A Good Act. Improved Gas Condenser. Two engravings. American Crop Prospects. The Launch of the Nipsic. The Swiss House at the French Exposition. One engraving. The Ingenuity of Bees. The St. Benoit Twins. One engraving. Improved Method of Milling. A Remarkable Meteoric Phenomenon. Drinking Water. Where to Observe the Solar Eclipse of July 29th. Explorations and Surveys. Tests for Good Burning Oil. Curious Hedge Figures. One engraving. Food Supply of Paris. The Leona Goat Sucker. One engraving. Oatmeal. Salt in Beer. Dr. Morfit's Method of Preserving Animal and Vegetable Food. The Ring of Fire, and the Volcanic Peaks of the West Coast of the United States. To Imitate Ground Glass. Railroad Birds. Improved Variable Automatic Cut-off. Four engravings. The Uses of Mechanism. Working Gold Ores. The Sun. With nine engravings. An excellent paper. Professor Edison's New Carbon Rheostat. Two engravings. The Chase Elemental Governor. Two engravings. Chinese Wine Powder. Amber Varnish. The Alkaloids of Opium. Microscopy. Is the Moon Inhabited? Description of the Recent Most Important Mechanical Inventions. Counterfeiting American Goods. The Steam Street Railways of New York City. Improved Piston Rod Stuffing Box. One engraving. Improved Automatic Fan. One engraving. Wandering Needles. Improved Step Box. One engraving. Heat Conductivity. New Volcano in Peru. Wood Carver of Simla. One engraving. Natural History Notes. Belgium, Holland, and England. Jointed Artillery. The Armstrong 100-ton Gun. The Phonograph. Scientific American Boat Drawings. Wire Tramway Worked by Water Wheels. Shell Polishing. Floating Batteries at Kertch. Apparatus for Administering Medicine to Horses. One engraving. Apprentice Shops for the Boys. A Boat Older than the Ark. Three figures. Employment of Ships against Forts. The Otto Bicycle. One engraving. A Simple Gas Generator. One engraving. Labor in Scotland. The Cattle Drives of 1878. Effects of Emancipation. A New Trouble with French Wines. The New Twin Steamer "Calais-Douvres." One engraving. Industrial Drawing and Art Studies. Vulcanizing Rubber. Strawberries and Constipation. Professor Langley's Papers on the Sun. Destruction vs. Construction of Ironclads. How Raisins are Prepared. The Sun.--A Total Eclipse. With six engravings. The Bishop of Manchester on British Trade Depression. A New Insect Pest. Death of a Giant. Edison's Phonomotor. Two engravings. Excavating Scoop. One engraving.