The American Journal of Science and ArtsS. Converse, 1864 - Science |
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Page 57
... precipitate is produced : a copious pale buff precipitate is thrown down which settles easily , leaving a yellow or orange - yellow solution containing the luteo- cobalt salt in small excess . The precipitate is to be washed by de ...
... precipitate is produced : a copious pale buff precipitate is thrown down which settles easily , leaving a yellow or orange - yellow solution containing the luteo- cobalt salt in small excess . The precipitate is to be washed by de ...
Page 58
... precipitate with solutions of chlorid of luteocobalt , and appears not to form a double salt with the chlorid of this radical , possibly in conse- quence of the triacid character of luteocobalt and the bibasic character of the ...
... precipitate with solutions of chlorid of luteocobalt , and appears not to form a double salt with the chlorid of this radical , possibly in conse- quence of the triacid character of luteocobalt and the bibasic character of the ...
Page 59
... precipitate is produced , when the whole is to be filtered and the precipitate thoroughly washed , first with boiling water and afterward with water containing a little chlor- hydric acid . The precipitate on the filter consists chiefly ...
... precipitate is produced , when the whole is to be filtered and the precipitate thoroughly washed , first with boiling water and afterward with water containing a little chlor- hydric acid . The precipitate on the filter consists chiefly ...
Page 60
... precipitate at first produced , and then evaporating to dryness with an excess of chlorhydric acid , the whole of the ruthenium will be brought into the form of RuCl , KCl . 3 When a solution of chlorid of luteocobalt is added to one ...
... precipitate at first produced , and then evaporating to dryness with an excess of chlorhydric acid , the whole of the ruthenium will be brought into the form of RuCl , KCl . 3 When a solution of chlorid of luteocobalt is added to one ...
Page 61
... precipitated in the separation of iridium from rhodium , ruthe- nium and platinum , by the method already pointed out , may be very conveniently effected in the following manner . The mixed sulphids are to be dried , separated from the ...
... precipitated in the separation of iridium from rhodium , ruthe- nium and platinum , by the method already pointed out , may be very conveniently effected in the following manner . The mixed sulphids are to be dried , separated from the ...
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Common terms and phrases
amber ammonia amplification antozone appear beds body boiling Brongt carbon Carboniferous centre cephalic cerium character chemical chlorhydric acid chlorid Coleopters color comet containing crystalline crystals determined Diptera distance distinct earth electric elongated ethylene evaporation fauna feet feldspar force formation fossil genera genus geology gives heat Herbivores hornblende Hymenopters inches inferior Insects iridium iron JOUR Journal lake latter layer less long-amplificate Lord Rosse mass Megasthenes memoir metallic miles mineral moon nearly nebula Neuropters nickel nitric acid North observations obtained orbit Orthopters oxyd oxygen ozone Paleozoic plants plates portion potash potassium precipitate present produced Prof pyroxene quantity remarkable rhodium river rocks ruthenium salt sandstone SCI.-SECOND SERIES seen silicates soda solar solution species specimens stars structure subdivisions sulphate sulphid of ethylene sulphuric acid surface temperature tephroite thallium tion titanic acid titanium tube velocity XXXVII
Popular passages
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Page 447 - Resolved by the National Academy of Sciences, That, in the opinion of this academy, the volumes entitled "Sailing Directions," heretofore issued to navigators from the Naval Observatory, and the "Wind and Current Charts," which they are designed to illustrate and explain, embrace much which is unsound in philosophy, and little that is practically useful ; and that therefore these publications ought no longer to be issued in their present form.
Page 138 - Preliminary Notice of the Fauna of the Potsdam Sandstone ; with remarks upon the Previously known species of Fossils, and Descriptions of some New Ones, from the Sandstone of the Upper Mississippi Valley. Ibid., pp. 119-209, 6 plates. 127. Supplementary Note on the Potsdam Sandstone.
Page 188 - When accident brings them into the immediate neighbourhood of the earth, they produce the phenomena of shooting-stars and fireballs. It has been shown by repeated observation, that on a bright night twenty minutes seldom elapse without a shooting-star being visible to an observer in any situation. At certain times these meteors are observed in astonishingly great numbers; during the meteoric shower at Boston, which lasted nine hours, when they were said to fall " crowded together like snow-flakes,"...
Page 196 - This view, it was thought, explained why the warming power of the sun was so much weaker at the top of a mountain than at the bottom, and why, in spite of his immense radiation, he retained his full powers. This belief, which especially prevails amongst imperfectly informed people, and which will scarcely succumb to correct views, is directly contradicted by the excellent experiments made by Pouillet at different altitudes with the pyrheliometer. These experiments show that, everything else being...
Page 409 - ... 00109. This ratio represents the proportionate elevation or depression of the barometer above or below its mean height that should be caused by the earth's rotation, and it corresponds very nearly with the actual disturbance at stations near the equator. From Oh. to 6li.
Page 190 - ... through which the weight falls increases. This velocity, however, if it be only produced by the fall, cannot exceed a certain magnitude ; it has a maximum, the value of which depends on the volume and mass of the attracting celestial body. Let r be the radius of a spherical and solid celestial body, and g the velocity at the end of the first second of a weight falling on the surface of this body ; then the greatest velocity which this weight can obtain by its fall towards the celestial body,...
Page 421 - This plant is evidently quite distinct from Calamites proper. The Calamite-like cast is a pith or internal cavity, surrounded by a thick cylinder of woody tissue consisting of scalariform vessels and woody fibres with one row of round pores; external to this is a bark of cellular and bast tissue. The structure appears to be allied to that of Sigillaria and is one of the most common in the beds of bituminous coal. M. C., Sydney (R. Brown) ; MC, Joggins, Pictou (JWD) ; Coal Creek (CB Matthew).