Beds, 368; the Composition of American Wheat Products, 375; Artificial J. PISCICULTURE AND THE FISHERIES......... (a.) THE FISHERIES. 385 Commissions: Report of the Fish Commissioners of Canada for 1875, 391; Report of the Fish Commissioners of Maine, 329; Report of the Fish Commissioners of New Hampshire, 393; Tenth Report of the Massachusetts Fish Commissioners, 393; Tenth Report of the Fish Commissioners of Connecticut, 394; Eighth Report of the Fish Commissioners of New York, 395; Fifth Annual Report of the Fish Commissioners of New Jersey, 397; Sixth Annual Report of the Fish Commissioners of New Jersey, 397; Action of the Kentucky Fish Commissioners, 398; Convention of Western State Fish Commissioners, 399; First Report of the Iowa Fish Commissioners, 399; Second Report of the Fish Commissioners of Wisconsin, 400; Second Report of the Fish Commissioners of Minnesota, 400; Arkansas Fish Commissioners, 401; Biennial Report of the California Fish Commission, 401.General Statistics and Reports: Report on the Maritime Fisheries of France, 1874, 385; Report of Bureau of Statistics, 386; Gloucester Fisheries for 1875, 386.-Special Fisheries: Connection of Meteorology and Herring-fisheries, 387; Potomac River Fisheries, 388; Seal-fisheries of 1876 on the Greenland Coast, 389; Close Time for Seals in the Northern Sea, 389; Report on Alaska Seal Islands, 389; Menhaden-fishery in 1875, 390; New Use for the Scrap of the Moss-bunker, 390; Utilizing the Offal of Codfish on the Gulf of St. Lawrence, 391; Capturing Eels in Cochin China, 403. (b.) FISH-CULTURE. General Considerations: Rapidity of Growth in Certain Fishes, 405; One Cause of Death of Fishes, 405; Utilization of Warmed Waters in Fish-culture, 406.-Particular Species: Cultivation of Carp in California, 403; Hatching Whitefish in the Detroit River, 403; Shad in the Mississippi, 406; Renewed Attempt to Send Salmon Eggs to New Zealand, 407; Salmon in the Antipodes, 408; Salmon Eggs in South Africa, 408; Capture of Salmon in the Connecticut River, 409; Artificial Culture of Pearl-Oysters, 409; Reproduction of the Oyster, 409; Fattening of Oysters, 410. K. DOMESTIC AND HOUSEHOLD ECONOMY..... 411 (a.) THE DWELLING. The Building: The Construction of Winding Staircases, 411; Self-closing Hinge for Storm-doors, Double Doors, etc., 411; Repairing Leaky Cellar Walls, 428.-The Furniture: Mysterious Clocks, 412; Prevention of the Cracking off of Glue, 412; Imitation of Straw and Wicker-work, 430. (b.) LIGHTING, HEATING, AND VENTILATION. Lighting: Electrical Illumination of Factories, 413; a New Incandescent Light, 414; Automatic Hydraulic Blower for Gas-machines, 414; Combined Street-lamp and Fire-hydrant, 414; New Safety-lantern, 414; the Chandor Light, 415; Lamp for Burning Nitric Oxide Gas, 415; Glycerine for Illumination and Heating, 416; Illuminating-gas from Bones, 417; Gas from Cork-waste, 417; Burning-gas from Wood and Petroleum, 417; Sul phur in Coal-gas, 418; Illuminating-gas from Night-soil and Dead Ani- mals, 418; Walking-cane containing a Candle, 419.-Heating: A Reflect- ing-plate for Open Grate Fires, 419; Improvement in Fire-places, 420; Ventilation: Method of Cooling the Air, 420. Cloth of Feathers for Ladies' Cloaks, etc., 422; Water-proofing Umbrellas, (e.) THE TABLE. Apparatus and Utensils: Cleaning Silver-ware, etc., with Potato-water, New Life-saving Device, 412; Substitute for Persian Insect-powder, 424; Explosions in Flour-mills, 428; Increasing the Adhesiveness of Court-plas- Mortars, Cements, and Slags: New Hydraulic Cement, 470; Dubois' Peinture Hydraulique, 471; Metal: Iron and Steel for Boilers, Bridges, etc., 432; Cast Steel for Locomotive Boilers, 432; Bessemer Process with Hot Blast, 432; Extended Service of a Furnace, 433; Revolving Furnace Bars, 433.- Wood: Preservation of Wood, 431; Carbolic Acid and the Preservation of Wood, 431; New Process for the Preservation of Wood, Vessels: Vertical Movement of Vessels under High Speed, 472.- Tele- graphs: Underground Telegraph Lines, 464.-Buildings: Effects of Tem- perature on the St. Louis Bridge, 466; the Construction of Revolving Draw- bridges, 467; the Proper Construction of Sewers, 467; a New Dry-dock, 468; the Effects of Levees, 469.-Mines: American Mining Methods, 434. -Light-houses and Signals: Steam Fog-whistles, 459; the Electric Light-house at South Foreland, 460; the Use of Gas for Light-houses, 461; the Electric Light for Signaling, 461; Fog-signaling by Explosives, 462; (c.) MOTORS. Coal and Fuel in General: Peat as Locomotive Fuel, 447.-Steam and Gauge to Register 54,000 Pounds, 437; an Automatic Relief-valve for Steam Fire-engines, 438; Stationary Hydraulic Engine for Railways, 439.-Rail- roads: Railway Signals and Blocks, 440; a New Plan of Elevated Railroad, 442; a New Rail for Street Railways, 443; Iron Sleepers, 444; Single-rail Steam Towage on Canals, 445.-Balloons: Scientific Ballooning, 449; Re- cent Progress of Aeronautics, 450; Aeronautics in the Arctic Regions, 452; the Parakite, 453.-Explosives and Projectiles: Fluid-compressed Steel and Guns, 453; Range-finder for Artillery Practice, 454; Sharp Artillery Practice, 455; Rotation of Rifled Projectiles, 456; Silicate Cotton, 457; Lignose, a New Explosive, 457; Influence of Heat on the Explosiveness of Nitro-glycerine, 458; Experiments with Prismatic Gunpowder, 458; Re- searches on Explosives, 459; Influence of Wind on Projectiles, 472. Electro-capillary Motor, 439; a New Motor for Small Machines, 442; New Oil-car, 442; Cast-steel Wire Ropes, 445; Submerged Chain for Towing Boats, 446; Wire Ropes of Phosphor-bronze, 446; the Pneumatic Tube in Theory and Practice, 447; Pneumatic Tubes in Paris, 448; Principles of the Construction of Wheels, 448; Extinguishment of Conflagrations, 464; Sulphur as a Fire Extinguisher, 465; the Aquometer, 471; the Brayton Printing and Stamping: A Printer's Ink readily Removable from Waste Paper, 486.-Engraving and Lithographing: Etching Photographs on Zinc, in Relief, for Ordinary Printing, 479; New Photolithographic or Au- beltype Process, 480; the Gillotype, 481; French Method in Engraving on Wood, 483.-Writing: Fire-proof Paper and Ink for Valuable Documents, etc., 484; Imitation of Jacobsen's Copying-ink Pencils, 484; Preparation of Copying-ink Pencils, 485; Marking-ink Unaffected by Chlorine, 485; Inerasible Black Ink, 485; Cohausen's Perigraph, 485.- Drawing and Copying: For Taking Tracings, 486; Copying Apparatus of Bauer & Co., 487.-Photographing: Recent Progress in Photography, 475; New Meth- od of Micro-photography for Maps in War-time, 482; Photographic Copy- ing-paper for Drawings, etc., 482; Retouching Varnish for Negatives, 483; Photographic Power of Artificial Light, 483.-Modeling and Casting: Pa- pier-maché Ornaments, etc., 487; Preservation of Plaster-casts, 487; Im- provements in Plaster of Paris, 488. (b.) THE MECHANICAL AND CHEMICAL ARTS. Spinning, Weaving, and Felting: Process for Covering Cotton with Silk, 502; New Method of Fulling Woolen Goods, 503.—Sizing and Dressing: Apparatine, a Substitute for Gum, Starch, etc., 498; Bleached Isinglass, 500.-Water-proofing: Water-proof Dressing for Leather, 488; Water- proofing Fabrics with Bichromated Gelatin, 489.-Water-proof Awnings, 511.-Cleaning and Bleaching: Discharging Aniline Black from Fabrics, 489; Utilization of the Suds from the Washing of Wool, 498; Bleaching Sponges, 501.-Dyeing and Printing: Effect of Freezing upon the Color of Fabrics, 488; Dyeing Parchment Paper with Aniline Colors, 489; Ar- tificial Ultramarine Industry, 489; Prohibition of Artificial Alizarine in Russia, 490; Golden Olive on Cloth, 490; Dyeing Silk, 490; Beautiful Black for Straw Hats, etc., 491; Dyeing Black with Cerium Salts, 491; New Black for Wool, 491; Xylindein, a New Dye-stuff, 492; Eosin, a New Fluorescent Dye-stuff, 492; a New Aniline Red, 492; Georgine, a New Yellow Dye, 493; Baryta-green, 493; Dyeing Cotton Pure Blue, 493; Formation of Purpurine for Alizarine, 494; Dove-color on Raw Wool, 494. -Painting, Staining, and Varnishing: Varnish for Blackboards, 495; Rendering Oak Wood a Beautiful Orange-yellow, 495; Brown Stain for Oak, 495; Deep Walnut Stain for Light Woods, 495; Gold Varnish for Metals, 496; Gilding Letters and Designs on Glass, 496; Oil-paint for Floors, 497; Adulteration of Beeswax with Paraffin, 500-Oils, Wax, Gums, and Resins: Purification of Fixed Vegetable Oils, 497; Palmieri's Dragometer, 497; Clarifying an Alcoholic Solution of Shellac, 499; Oleic Acid as a Solvent and Test for Gum Copal, 500; the Industrial Employment of the Light Products of Petroleum, 522.-Plating or Coating with Metals: Tinning Iron Tacks, 514; Brilliant Zinc Coating on Brass and Copper, 514; Enameling on Brass and German Silver, 515; Bronzing Iron Castings, 515; Nickel-plating Process, 515; Production of a Brownish Patina on Zinc, 516; Coating Mirrors with an Alloy of Gold and Platinum, 516; Nickel-plating Solution, 516.-Alloys: Copper Alloy that will Adhere to Glass, 512.-Polishing Steel Brushes for Cleaning Iron Castings, 498.-Cementing: A New Cement, 510; Attaching Leather to Metal, 510; Marine Glue, 510; Durable Glue, 511; Liquid Glue, 511; Gelatin and Bichromate of Potash Cement for Glass, 512.-Sundry Chemical Processes: Preparation of Blood as a Powder, 520; Carré's Carafe Ice-machine, 522.-Raw or Simple Materials used in the Arts: Schweitzer's Solvent for Cellulose, 500; Utilization of Chrome-alum, 501; Modifications of Chrome-alum, 502; Cuirliège, a New Fabric, 505; Russia Leather, 508; a New Glass, 512; Hardened Glass, Vulcan Glass, and Metallic Glass, 513; Hardening Glass, 513; Artificial Gems of Hardened Glass, 514; Water-glass for Washing Cotton used in Cleaning Machinery, 514.-Utilizing Waste Products: The Hair of Squirrels' Tails for Brushes, 503; Utilization of Leather-waste, 506.— Adulterations: Adulteration of Beeswax with Paraffin, 500.-Miscellaneous: Uses of Gelatinous Hydrated Phosphate of Lime, 499; Removing Vegetable Substances from Wool, 502; Numbering Silk Thread and Fabrics, 504; a New Industry, 507; Cement for Ovens, 509; Reflector for Moulders, 517; Self-feeding Nail-machine, 517; Flexible Mandril for Bending Metal Pipes, 517; Tempered Steel Brushes, 518; Rapidity of Filtration, 518; New Application of Infusorial Earth, 519; Condensing Beer for Preservation, 519; New Form of Paper Filter, 519; another Direct Soda Process, 520; Air-tight Joints, 520; to Prevent Shafting Accidents, 521.— Tanning and Dressing Skin: New Substitute for Bark in Tanning, 507; Olive-oil and Glycerine as a Partial Substitute for Yolk of Egg in Tanning, 508; Rapid Tanning Process, 508. N. MATERIA MEDICA, THERAPEUTICS, AND HYGIENE........................ (a.) MATERIA MEDICA. 525 Jolly on Phosphate of Lime, 525; Hypodermic Injection of Lactate of Materia Medica, 526; on Jaborandi, 527; Therapeutic Qualities of Cod- liver Oil and Quinine, 529; Cheap Quinine, 529; Chloral and Picrotoxine, 529; Action of Bromide of Lithium, 530; Extraordinary Action of Nitrite Effects of Cholera on the Mucous Membrane, 532; the Blood in Typhoid Fever, 532; Asiatic Cholera, 532; Peculiar Disease among Dogs in China, 533; Treatment of Asthma, 534; French Investigation of Hay-fever, 534; Cochin-China Diarrhoea, 535; Indian Corn and Endemic Pellagra, 535; Im- proved Dental Process, 536; Poisonous Properties of Glycerine, 537; Poi- Influence of Altitude upon the Health, 531; Electrical Alarm against Car- bonic Oxide, 540; Cincinnati Hams, 538; Exclusion of Dust from the Lungs, 538.- Miscellaneous: Report of Massachusetts State Board of |