GENERAL INDEX. 



417 



Coast farms, method of procuring iodine 



on, 183 



" of the United States, foraminiferae 



of, 325 



Coating for cast-iron, 96, 97 



" iron with copper. 

 Cochineal, 210 



Cochituate water, mode of conveying, 



beneath a navigable stream. 58 



Cod-liver oil. action of. and test for, 21 ; 



COENTRE, M. LE, 



ue, 323 



" alimentation of. 13?, 191 



COLLINS. E. K., 12 



Color, blue, of the ancients, 213 



Coloring materials, new, 211 



matters, power of peat charcoal 



to remove, 



Colors, complementary, theory of, 137 



" organic, influence of sunlight 

 over the action of. on dry 

 gases, 21 5 



of stars, 



37-1 



Columns, icy, protrusion of, from cer- 

 tain kinds of earth, \~fi 

 Combustion, spontaneous, of a human 



being, 



Comet, Bond's, 366 



" discovered at sea in 1349. 3<37 



" Faye's, 367 



" Petersen's, 



Comets of 1850, 366 



" various, identity of, 

 Comparison of Fahrenheit and Centi- 

 grade thermometers, 



Complementary colors, theory of, 137 



Compound, disinfecting, 217 



explosive, 235 



'' peculiar, of larcl and rosin, 236 



rail, new, 



Compounds, lubricating, test for, 103 



Condensation of volume in highly hy- 



drated minerals, 224 



Condenser, Pirsson's fresh-water, 9 



regenerative, 



Conditions, certain, of freezing water, 221 

 chemical, of the water at 

 the surface of the ocean 

 and at the bottom, 22-3 



Conducting power of acids, 131 



Conductors, proper length of, 130 



Connection between the consumption 

 of food and the increase 

 in the weight of animals, 192 

 " between European and 



American geolosical for- 



9.V 



Copper, coating iron with, 



corrosive action of sea-water 



on, 



Lake Superior, structure of, 

 " phosphorus in, 



COHMACK, I'R., 



mations, 



of ozone and diseases, 



Constituents, chemical, of iron. 17 r J 



" of manures, action of 



soils on. 2 1 



Continent. American, new names for, 02! 

 Conveying the Cochituate water be- 

 neath a navigable stream, 

 Cooking by gas. 

 Cooling tb.3 atmosphere of rooms in 



warm climates, 

 Copper alloy of silver, corrosion of, 22b 



American, 

 " arseniats of. as a pigmtul. 212 



97 



224 

 175 



224 

 209 



Corrosion of a copper alloy of silver 



used as sheathing for ships, 22G 

 of steam-boilers, means of 



preventing, 11 



COSTE, M.. 336 



Cotton, new variety of, 319 



" press, 



COULVILR-GRAVIER, M., 371 



Coupling for pipes and hose, 60 



Crania. African, 3-57 



American, 3-57 



Jrayrtn Daguerreotypes. 152 



Sretinisni, 362 



Crystallized gold from California, 296 



rv.-t.-i'.s of sesquioxide of chromium, 

 artificial, 179 



Cure for stammering, 363 



Current charts. 162 



nervous, rapidity of, 3-31 



Currents of thejUiantic, 267 



of the ocean, 264 



DA COSTA, S., 39 



Daguerreotype case, 75 



Daguerreotypes, crayon, 152 



solar and stellar, 143 



DALYELL, SIR J., 343 



DANA, PROF., 254, 334 



Date country, flora of, 



DAUBENY, MR., 325 



DAUBREE, M., 167 



DAVIS, LIEUT., 263 



DAVY, DR. J., 195,226 



" SiRH., 214 



Dead Sea and the Jordan, infusoria of, 

 Death from want of sleep, 

 Decomposing silicates, new method of, 236 

 DELANO, F. R., 4 



DELESSE, M., 136 



Density of the earth, application of the 

 electro-chronograph to the determina- 

 tion of, 123 

 Deposits, drift, of the Northwest, 260 

 Lake Superior iron, 298 

 '' metalliferous, new, 298 

 recent geological, 261 

 Depth of the ocean, observations on, 264 

 Description of the water telescope, 143 

 DESOR. MR., 253, 255, 261 

 DESPSETZ, M.. 114, 170 

 Detection of sugar in certain liquids, 



new test for, ' 187 



Determination of the quality of opium, 218 

 Determining uranium in its ores, new 



method of. 179 



Development, embryonic, relation of, 



to permanent forms, 339 



DEWEY. PROF., 292 



Diamond. East India, 307 



fusion of, 171 



peculiar form produced in, 



by the voltaic arc, 172 



in possession of the Nizam, 309 



Diaphragm, polarizins, 146 



CICKEON.. A , 90 



