II. TECHNOLOGY AND CHEMISTRY.--Glucose 4126 American Manufacture of Corn Glucose 4126 The Conversions--Starch--Dextrine.--Complete glucose 4126 Depreciation of a Glucose Factory 4126 The Fire Risks of Glucose Factories and Manufactures 4126 Glucose Factory Fires and Ignitions 4127 The Hirsh Process. By Adolf H. Hirsh--Improvement in the manufacture of sugar from Corn 4127 Time in the Formation of salts. By M. Berthelot 4127 An Old Can of Preserved Meat By G. W. Wigner 4127 Chemistry for Amateurs. 6 figures.--Reaction between nitric acid and iron.--Experiment with Pharaoh's serpents.--Formation of crystals of iodide of cyanogen--Experiment with ammoniacal amalgam.--Pyrophorus burning in contact with the air.--Gold leaf suspended over mercury 4128 Carbonic Acid in the Atmosphere. 2 figures 4129 On Potash Fulling Soaps By W. J. Menzies 4129 Photography of the Invisible 4134 III. ELECTRICITY. LIGHT, HEAT, ETC.--Exhibition of Gas and Electric Light Apparatus, Glasgow 4125 Electric Light in the German Navy. 1 illustration. Armored Frigates Friedrich Karl and Sachsen.--Dispatch Boat Grille, and Torpedo Boat illuminated by Electric Light 4130 Interesting Facts about Gas and Electricity.--Gas as Fuel.--Gas for Fire Grates 4130 A New Electric Motor and its Applications. 6 figures. Trouve's New Electric Motor 4131 On Heat and Light. By Robert Ward 4131 Photophonic Experiments of Prof. Bell and Mr. Tainter. By A. Bregult 4132 Distribution of Light in the Solar Spectrum. By J. Mace and W. Nicati 4132 Mounting Microscopic Objects 4132 New Sun Dial. By M. Grootten. 1 figure 4132 Antoine Cesar Becquerel, with portrait 4132 IV. HYGIENE AND MEDICINE.--On the Etiology of the Carbuncular Disease. By L. Pasteur, assisted by Chamberland and Roux. An extremely valuable investigation of the nature, causes, and conditions of animal plagues 4133 Report on Yellow Fever in the U. S. Steamer Plymouth. By the Surgeon-General in U. S. Navy 4134 Fuchsin in Bright's Disease 4134