Sentence Examples


  • In many parts, particularly in the eastern basin, a calcareous or siliceous crust, from half an inch to three inches in thickness, is met with; and Natterer suggested that the formation of this crust may be due to the production of carbonate of ammonium where deposits containing organic matter are undergoing oxidation, and the consequent precipitation of carbonate of lime and other substances from the waters nearer the surface.
  • In carrying out the process the articles are placed in an air-tight vessel with the zinc dust, which must be dry, and subjected to a heat of 250-330° C., the time for which the heating is continued depending on the thickness of the deposit required and varying from one-half to several hours.
  • If I represent the intensity of the primary light after traversing a thickness x of the turbid medium, we have dI = - hIA-4dx, where h is a constant independent of A.
  • (1) if Io correspond to x = o, - a law altogether similar to that of absorption, and showing how the light tends to become yellow and finally red as the thickness of the medium increases (Phil.
  • If there be n similar particles per unit volume, the energy emitted from a stratum of thickness dx and of unit area is found from (9) by the introduction of the factor ndx.

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