Produced by Juliet Sutherland, Lesley Halamek, and the Online Distributed Proofreading Team at http://www.pgdp.net [Illustration] SCIENTIFIC AMERICAN A WEEKLY JOURNAL OF PRACTICAL INFORMATION, ART, SCIENCE, MECHANICS, CHEMISTRY, AND MANUFACTURES. NEW YORK, JULY 3, 1880. Vol. XLIII.--No. 1. [NEW SERIES.] [$3.20 per Annum [POSTAGE PREPAID.]] * * * * * CONTENTS. (Illustrated articles are marked with an asterisk.) 1 Agricultural inventions 1 40 Aspirator and compressor* 11 38 Astronomical notes 11 25 Baby elephant takes a bath 7 22 Bath, shower, portable, new* 6 11 Boiler explosions, prevention of* 4 38 Canal boat, improved 10 17 Carpetings, etc., printing gold on 5 30 Chloral hydrate, simple test for 7 13 Chloroforming during sleep 5 35 Corn magnets 10 14 Dipper, watering, improved* 5 29 Drowned, perseverance with the 7 15 Electric lamp, improved* 5 25 Elephant, baby, takes a bath 7 37 Engineering inventions 10 6 Epidemic, strange, a 2 33 Exhibition, internation., Sydney* 8 11 Explosions, boiler, prevention of* 4 39 Fires in New York 11 8 Fogs, navigation in* 3 16 Fruit, preserving app. for* 5 3 Gas machine, Maxim's* 1 3 Gas making, simple process* 1 20 Genessee Falls, utilization of 5 34 Horology, report of judges* 8 33 International exhibition, Sydney* 8 1 Inventions, agricultural 1 37 Inventions, engineering 10 24 Inventions, mechanical 7 12 Inventions, miscellaneous 4 42 Inventions, new 11 9 Iron, effect of age on quality 3 15 Lamp, electric, improved* 5 23 Leadville mines and railroads* 6 35 Magnets, corn 10 36 Materials, resistance of, exp. on 10 3 Maxim's gas machine* 1 24 Mechanical inventions 7 31 Natural history notes 7 8 Navigation in fogs* 3 7 Oil tanks, cannonading of 3 18 Ore separator, Edison 5 41 Photoglyptic process, new 11 26 Phyllirhoe Bucephala* 7 32 Ruggles, S. P 7 22 Shower bath, portable, new* 6 19 Slate washer, novel* 5 2 Specimen, rare, lost 1 5 Steamer, little, remarkable 2 10 Steamers, large, collision between 3 21 Stevens Institute of Technology 5