Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art for ...1864 |
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Pagina viii
... thickness below rain , which is at variance with our preconceived ideas . - Cinchona Bark from India . The gradual but certain destruction of the Cinchona forests of America , which has been viewed with so much anxiety by all who know ...
... thickness below rain , which is at variance with our preconceived ideas . - Cinchona Bark from India . The gradual but certain destruction of the Cinchona forests of America , which has been viewed with so much anxiety by all who know ...
Pagina 35
... thickness of the layer of non- conducting material ; and this , at the best , is relatively but for a brief period . If the second , only , has been omitted , since the protection arising from vaporization is due to the absorption of ...
... thickness of the layer of non- conducting material ; and this , at the best , is relatively but for a brief period . If the second , only , has been omitted , since the protection arising from vaporization is due to the absorption of ...
Pagina 38
... thickness , was prepared to represent the inside case . When in place , there was a space for composition of three inches thickness on every side of the box . In each wooden box was placed a piece of parchment , some white writing paper ...
... thickness , was prepared to represent the inside case . When in place , there was a space for composition of three inches thickness on every side of the box . In each wooden box was placed a piece of parchment , some white writing paper ...
Pagina 41
... thickness of the filling , to protect , as long as it may , the contents of the case . THE GREAT BOSTON ORGAN . During the past year there 4 * MECHANICS AND USEFUL ARTS . 41 On opening the furnace, the appearances of the safes ...
... thickness of the filling , to protect , as long as it may , the contents of the case . THE GREAT BOSTON ORGAN . During the past year there 4 * MECHANICS AND USEFUL ARTS . 41 On opening the furnace, the appearances of the safes ...
Pagina 55
... thickness , the mode of fastening it , whether single plates or a number of thin ones are the best , with wood backing or without , - these are only a few of the questions bearing upon the subject which have received attention . That ...
... thickness , the mode of fastening it , whether single plates or a number of thin ones are the best , with wood backing or without , - these are only a few of the questions bearing upon the subject which have received attention . That ...
Overige edities - Alles bekijken
Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art ... Volledige weergave - 1859 |
Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art ... Volledige weergave - 1852 |
Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art ... Volledige weergave - 1858 |
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Populaire passages
Pagina 170 - It is conceivable that the various kinds of matter, now recognized as different elementary substances, may possess one and the same ultimate or atomic molecule existing in different conditions of movement. The essential unity of matter is an hypothesis in harmony with the equal action of gravity upon all bodies. We know the anxiety with which this point was investigated by Newton, and the care he took to ascertain that every kind of substance, ' metals, stones, woods, grain, salts, animal substances,'...
Pagina 256 - As with an invisible trowel, the mass is divided and subdivided into smaller and smaller portions, until it is reduced to an aggregation of granules not too large to build withal the finest fabrics of the nascent organism. And, then, it is as if a delicate finger traced out the line to be occupied by the spinal column, and moulded the contour of the body...
Pagina 306 - Thus, by means of repeated selection alone, the length of the ears has been doubled, their contents nearly trebled, and the " tillering" power of the seed increased five-fold.
Pagina 288 - The Negro exhibits permanently the imperfect brain, projecting lower jaw, and slender bent limbs of a Caucasian child some considerable time before the period of its birth. The aboriginal American represents the same child nearer birth. The Mongolian is an arrested infant newly born. And so forth.
Pagina 77 - The natural philosopher of to-day may dwell amid conceptions which beggar those of Milton. So great and grand are they, that, in the contemplation of them, a certain force of character is requisite to preserve us from bewilderment.