Vi TABLE OF CONTENTS. 



LIGHT. 

 Chemical Action on Petroleum, 45, 78. Spectral Analysis of Blood, 45; of 

 Water, 46; Diffusion of, 46; Fluorescence, 4G; Color of Lake and Sea Wa- 

 ter, 17 ; Vision, Duration of, 44 ; Sensitive Flames, 43. 



HEAT. 

 Boiling Points, 47; in Coal, 49; of Aqueous Solutions, 49. 



SOUND. 



Phenomena on Mount Sinai, 47. 



D. CHEMISTRY AND METALLURGY 51 



Gases : Absorption of, by Charcoal, G7. Oxygen : Rusting of Iron, 51. 

 Hydrogen, 60. Iodine, 71. Sulphur : Aqueous Solvent for, 68. Car- 

 bon : Plumbago, 65 ; in Steel, 66. Manganese : in Blood and Milk, 68 ; 

 in Acorns, 288. Potassium in Tobacco-smoke, 73. Cerium a Test for 

 .Strychnine, 72. Gold : in Quartz, 53 ; Non-amalgamable, 54. Silver : Al- 

 loy, 54 ; Testing of, 54 ; Brittle, 78. Copper in Pyrites, 55. Iron : Mi- 

 croscopic Character, 61 ; Purification by Sodium, 62; Removal of Phos- 

 phorus, 63 ; Graphite in, 65 ; Gas in r 66. Steel : Microscopic Structure, 

 1 ; Heaton, 63, 64 ; Berard, 63 ; Bessemer, 64 ; Carbon in, 66. Alloys : 

 Silver, 54 ; Bronze, 55 ; Sodium and Potassium, 55. Plating of Metals : on 

 Fabrics, 56, 61; on Zinc by Iron, 56; Nickel and Cobalt, 57, 58; Tin, 59; 

 Plating of Organic Matrices, 60. Reduction of Metals: by Hydrate of 

 Chloral, 52 ; by Chloride of Iron, 53 ; of Native Sulphides, 52. Alloys, 54, 

 532 ; Phosphorus Bronze, 532. 



Milk, 80. Dambose, 79. Alkaloids : Coniin, Synthesis of, 73 ; Regia- 

 nine, 74 ; new one in Cinchona, 75. Chloral Hydrate, Test for, 72 ; as a re- 

 ducing Agent, 52. Glycerine : Butyric Acid in, 72 ; Pure, 79. Coal-tar : 

 Acrichine, 77. Petroleum, Action of Light on, 45, 79. Resin, Solidifica- 

 tion of, 68. Gun-cotton, Non-explosive, 69. Water-glass, 70. Chrome 

 Alum, 78. Sulphuric Acid, 71. Carbonate of Lime, 67. Bichromate 

 of Potash, 518, 519. 



Chemical Tests : for Ha?min, 66 ; Strychnine, 72 ; Hydrate of Chloral, 

 72 ; Benzole, 72 ; Butyric Acid, 72. 



E. MINERALOGY AND GEOLOGY 81 



MINERALOGY. 

 Iron: Homeric, 81; in Guayaquil, 81. Silver : Lake Superior Mines, 82. 

 Tin : New Localities of, 93. Silicon : Quartz Crystals, 93. Carbon : 

 Diamonds in Xaiuhophyllite, 81 ; South African, 82. 



GEOLOGY. 

 America: Missouri, 82; Nevada, 86 ; South Carolina (Phosphate Beds), 

 87 j New England and the Provinces, 94, 95, 101 ; Lake Superior (Silver 

 Mines), 92; California, 102; American Lakes, 83; Atlantic Coast, 84, 97, 

 101; White Mountains, SO; Jamaica, 97; Greenland, 96 ; Pliocene Period, 

 91. Europo: the Alps, 99; Great Britain, 88, 90. Asia : Caves of the 

 Altai, 89. Africa : Diamond Fields, 82. 



Ice Action : North American Coast, 84 ; White Mountains, 86 ; New 

 England, 94, 96; Greenland, 96 ; Scotland, 84; Switzerland, 98 ; Spitzber- 

 n,94. 



