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America amount animals appear arranged Asia base become beds carbonic causes changes character chemical clay coal collection colour compared considerable considered contains crystals deposits distinct distribution earth entirely epochs equal Europe evidence existence experiments extended facts families fauna feet fishes formation fossil geological give greater important increase indicate inhabited instance iron Islands Italy Jameson kind knowledge known land less Light lime Limestone limits living lower mass matter means minerals Museum natural Natural History North Nummulites observed obtained occur organic origin palśozoic period plants portion present probably produced Professor quantity races rain realm regard regions relation remains remarkable respect rocks seen silica Society species specimens structure substance success surface tion types variety vegetable whole zone
Pagina 379 - Sketch of the Natural Provinces of the Animal World, and their relation to the different Types of Man, reaffirms the homogeneous characteristics and ethnic insulation of the American Indian on entirely novel and independent grounds.
Pagina 189 - Manual of Natural History for the Use of Travellers ; being a Description of the Families of the Animal and Vegetable Kingdoms, with Remarks on the Practical Study of Geology and Meteorology. To which are appended Directions for Collecting and Preserving.
Pagina 345 - ... subject, viz., the natural relations between the different types of man, and the animals and plants inhabiting the same regions. The sketch here presented is intended to supply this deficiency, as far as it is possible in a mere outline delineation...
Pagina 376 - Peligot subsequently analyzed it, and found 20.9 per cent, of sugar. Biot, therefore, suggests that those who make, as well as those who refine sugar, might resort to this test as a means of determining the amount of sugar in different juices or solutions. To the colonist it would prove useful by pointing out the saccharine strength of the juice at the mill, and to the sugar refiner it would be valuable by enabling him to determine the absolute strength of raw sugar.
Pagina 175 - Craven, and can say that they are among the most interesting I have ever seen. You recollect that I said in my Report that with the increase in depth (in the greater depths) the number of individuals appeared to increase. The greatest depth from which I had seen specimens was between 200 and 300 fathoms. There the sand contained perhaps 50 per ct.
Pagina 184 - To protect Building-stones from decay. — The stone surfaces of buildings, by being exposed to the action of the atmosphere, become liable to disintegration from various causes. Moisture is absorbed into their pores. The tendency of their particles to separate, in consequence of expansion and contraction, produced by alternation of temperature, is thus increased. Sulphurous acid is always present in the atmosphere of coal-burning cities, and cannot but corrode the calcareous and magnesian ingredients...
Pagina 369 - M. Perrey of Dijon, would infer that earthquakes may possibly be the result of an action of attraction exercised by that body on the supposed fluid centre of our globe, somewhat similar to that which she exercises on the waters of the ocean...
Pagina 373 - ... for the purpose of quickening the process of germination. If all the seeds germinate, the seed obtains the highest value in the market. If only eighty germinate, the seed loses 20 per cent, in value. This process ordinarily occupies from twelve to fifteen days ; but Mr. Lawson found that by using blue glass they are enabled to determine the value of seed in two or three days : and this is a matter of such commercial importance to them that it is quite equal to a gift of £500 a year.
Pagina 337 - I would add, it makes little difference whether the mental inferiority of the Negro, the Samoiyede, or the Indian, is natural or acquired ; for, if they ever possessed equal intelligence with the Caucasian, they have lost it ; and if they never had it, they had nothing to lose. One party would arraign Providence for creating them originally different, another for placing them in circumstances by which they inevitably became so. Let us search out the truth, and reconcile it afterwards.