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Herbert spencer essay what knowledge is of most worth

Print Advertisement In Herbert Spencer's essays on education—a most profound work noticed by us a few weeks since—we find the following exquisite paragraph on the utility of practical scicnce: Moreover, not only is it that scientific culture is requisile for each, that he may understand the how and the why of the things and pro-cesses with which he is concerned as maker or distributor ; but it is often of much moment that he should understand the how and the why ot yarions other things and processes.

Here is a mine, in the sinking of which many shareholders ruined themselves from not knowing that n certain fossil belonged to the old red sandstone, below which no coni is found.

Numerous attempts have been made to construct electro-magnetic engines, in the hope of superseding steam; but had those who supplied the money understood the general law of the correlation aad equivalence of forces, they might have haJ better balances at their bankers. Daily are men induced to aid in carrying out inventions which a mere tyro in science could show to be futile.

  • This l'emoves a small portion of the color;
  • Daily are men induced to aid in carrying out inventions which a mere tyro in science could show to be futile.

Scurcely a locality but has its history of fortunes thrown away over some impossible project. On old parchments, the ink, under the Influence of time, assumes a yellowish tint, which often becomes undistingltishable from that of the pnrchment, so that it cannot be read without the grpatest difficulty.

What Knowledge is Most Worth

Now, during the photographic process the brilliant and polished parts of the parchment reflect light much better than those Where the ink has been deposited. However colorless It may appear, the ink hns not lost its anti-photogenic qualities, opposed to the photor: Photogmphers al'e also able to obtain, at pleasure, enlarged or diminished copies of manuscripts, pictures, statues, and ether works or art.

  1. At the expiration of fifteen days the coloring matter is developed, and it gives a beautiful brown or red color to the stalks.
  2. This l'emoves a small portion of the color. They are dried to stop the fermentation, and then ground to a fine powder, which is treated with water.
  3. Photogmphers al'e also able to obtain, at pleasure, enlarged or diminished copies of manuscripts, pictures, statues, and ether works or art.
  4. This l'emoves a small portion of the color. However colorless It may appear, the ink hns not lost its anti-photogenic qualities, opposed to the photor.

Many roc"nt photographs, examined with the aid of a microscope, reveal particles invisible to the naked eye ; several of the lunar impressions taken during the late eelipse, and some of the solar ones, are cited as belonging to this category. It is prepared by fermenting the stalks of the plant from which the juice has been expressed. At the expiration of fifteen days the coloring matter is developed, and it gives a beautiful brown or red color to the stalks.

They are dried to stop the fermentation, and then ground to a fine powder, which is treated with water. This l'emoves a small portion of the color.

  • This is a remarkable proof of the percussive power of sbot;
  • The base is neutmlized by sulphuric acid, and the carmine is soon deposited under the form or light flakes.

It is then treated with a weak solution of caustic soda or potassa. The base is neutmlized by sulphuric acid, and the carmine is soon deposited under the form or light flakes.

  1. However colorless It may appear, the ink hns not lost its anti-photogenic qualities, opposed to the photor.
  2. It is then treated with a weak solution of caustic soda or potassa. On old parchments, the ink, under the Influence of time, assumes a yellowish tint, which often becomes undistingltishable from that of the pnrchment, so that it cannot be read without the grpatest difficulty.
  3. Many roc"nt photographs, examined with the aid of a microscope, reveal particles invisible to the naked eye ; several of the lunar impressions taken during the late eelipse, and some of the solar ones, are cited as belonging to this category. Daily are men induced to aid in carrying out inventions which a mere tyro in science could show to be futile.
  4. It is prepared by fermenting the stalks of the plant from which the juice has been expressed. At the expiration of fifteen days the coloring matter is developed, and it gives a beautiful brown or red color to the stalks.

The red of the sorgho is soluble in alcohol, the alkalies and feehie acids. It answers very well for dyeing silk and wool, and it appears to resist the action of light. This is a remarkable proof of the percussive power of sbot.