TABLE OF CONTENTS. xiii 



K. DOMESTIC AND HOUSEHOLD ECONOMY (ccxxix) 441 



(a.) THE DWELLING AND ITS FURNITURE. 



Treatment of New Wooden Utensils, etc., 442 ; Improved Dwellings and 

 their Effect on Health and Morals, 453 ; Beautiful Ornament for Booms, 

 457 ; the Construction of Winding Staircases, 468. 



(b.) LIGHTING, HEATING, AND VENTILATION. 



A New Light, 442 ; Lamp for Burning Nitric Oxide Gas, 443 ; Nitric Oxide- 

 bisulphide of Carbon Lamp for Bhotographic Use, 444; New Luminous 

 Mixture, 445 ; Glycerin as an Illuminant, 451 ; Use of Gas for Light-houses, 

 441 ; Price of Burning-gas, 442. 



(C.) CLOTHING AND ADORNMENT. 



Merriman's Water-proof Life-saving Dress, 444; Peroxide of Hydrogen 

 for Changing Black Hair to a Golden Yellow, 445; Dust-spectacles for 

 Protection of the Eyes in Various Occupations, 446 ; Renewing Wrinkled 

 Silk, 455. 



(d.) THE LAUNDRY. 



Starching Linen, 522 ; Transparent Soap, 441 ; Bohlken's Washing-ma- 

 chine, 452 ; Washing Woolen Clothing, 455 ; Washing Muslin, Cambric, 

 French Lawn, etc., 456. 



(e.) THE TABLE. 



Preservation of Meat, Vegetables, etc., by Acetate of Ammonia, 446 ; Pre- 

 venting the Curdling of Milk by Oil of Mustard, 446 ; New Method of Pre- 

 serving Meat, 449; Preservation of Cooked Meat, 449; Patent Cooling 

 Apparatus for Liquids, 450 ; Improved Refrigerators, 451 ; Method of Pre- 

 serving Eggs, 456 ; New Mode of Making Bread, 452 ; Artificial Vanilla, 

 457 ; Effect of Washing upon Vegetables, 458 ; Cheap Preparation of Good 

 Vinegar, 447 ; Removing Fusel-oil from Liquors, 452 ; Extract of Meat in 

 Bread, 457 ; Convenient Preparation of Carbonated Water, 447 ; Pasteur's 

 Process Avith Wine and Beer, 450 ; a New Substitute for Coffee (Sacca Cof- 

 fee), 453; Australian Method of obtaining Cool Water, 455 ; Yaupon Tea, 

 457 ; Cover for Water-coolers, 458. 



L. MECHANICS AND ENGINEERING (ccxxix) 459 



(a.) MATERIALS. 



Mortars, Cements, and Slags : Utilizing Furnace Slag, 460 ; Increasing 

 the Adhesive Power of Cement, 465 ; Cement for Marble and Alabaster, 

 487; the Strength of Cements and Mortars, 492. Metals Iron: Pig-iron 

 Production of the United States in 1874, 459 ; Iron Production in France, 

 460 ; Manganiferous Iron, 460 ; Steel Direct from the Ore, 461 ; Crampton's 

 Revolving Furnace for Puddling Iron, 462 ; Schmitz's Revolving Furnace- 

 bars, 484 ; Magnetic Ore Separator, 462 ; Discovering the Character and 

 Composition of Iron and Steel by Etching, 463 ; Novel Phenomenon dur- 

 ing the Forging of Metallic Bars, 463 ; Tungsten-steel, 464 ; Etching Iron, 

 482 ; Organization of the United States Board for Testing Iron and Steel, 

 489. Wood: Preservation of Timber, 465; Preservation of Timber by 

 Lime, 466 ; Preservation of Wood by Means of Iron, 466 ; Use of Carbonic- 

 acid Gas in Drying and Seasoning Timber, 467 ; the Strength of Wood 



