Bowdoin Scientific Review: A Fortnightly Journal, Band 1,Ausgabe 1 -Band 2,Ausgabe 28

Cyrus Fogg Brackett
Bowdoin College, 1870

Was andere dazu sagen - Rezension schreiben

Es wurden keine Rezensionen gefunden.

Ausgewählte Seiten

Häufige Begriffe und Wortgruppen

Beliebte Passagen

Seite 2 - The substance in small proportions arrests, in some degree, the coagulation of the blood, and in large quantities, stops the process of coagulation altogether. In large quantities it also destroys the blood corpuscles, and produces general destruction of blood ; but the dose required to produce extreme narcotism, need not be so large as to lead to serious derangement of blood.
Seite 277 - When subjected to the influence of a narcotic gas, the color, it was observed, never became altered, and the plants looked as green and succulent at the end of the experiment as at the beginning. Whenever the plant began to droop, though removed to a forcing-bed and watered, in no instance did it recover, but died down even more speedily than it would have done if left to the continued action of the gas.
Seite 139 - The spinal cord in the frog can recover instantaneously a loss of substance which has taken place in its own tissues, and repair its primitive anatomical and physiological properties.
Seite 58 - This method, however, fails to give evidence of a new earth ; for, since the publication of my former paper, I have proved that the very abnormal spectra which seemed sufficient to establish its existence are really due to compounds of zirconia with the oxides of uranium, which have such a powerful action on light that an almost inappreciable amount is sufficient to produce the spectra to great perfection — in fact, so small an amount that the total quantity which misled me was only a few thousandths...
Seite 46 - After remarking that the mathematician positively knows that the sum of the three angles of a triangle is equal to two right angles...
Seite 44 - Schroeder found that flesh did not decompose if the air was previously passed through a good filter of cotton wool, some difficulty was thrown on the subject. It would appear as if oxygen were not the only agent in the atmosphere causing decomposition. The investigations of M. Pasteur, who found the subject in this uncertain condition, have advanced it so far that we may now with certainty reason in the belief that...
Seite 57 - ... ordinary absorption. It would, perhaps, be well to mention here that I have in this manner proved that the abnormal bands seen in the spectra of the compounds of zirconia with the oxides of uranium, described in this paper, are due to genuine absorption, and not to fluorescence. The remarkable spectrum of some jargons has been already described by me in the CHEMICAL NEWS (vol.
Seite 55 - ... visible in some of the examinations. The next in quantity is vegetable tissue. Some of this formed a very interesting object, with a high power, and the greater portion exhibited what is called pitted structure. The larger particles of this had evidently been partially burnt, and quite brown in colour, and were from coniferous plants, showing with great distinctness the broad marginal bands surrounding the pits ; others had reticulations small in diameter. They reminded me of perforated particles...
Seite 325 - ... improvement. Sometimes there is slight restoration of voluntary power after even the first or second application, and then the subsequent improvement is very trifling When the paralysis is imperfect, and the contractility is only diminished, you may accomplish much; but when the contractility has quite disappeared there is little or nothing that you can do. You never can tell, until you have made several applications of the current, whether or not the case is curable, for, although a group of...
Seite 57 - Though the spectra of the different salts of those bases which show wellmarked absorption-bands often differ in detail, yet they usually resemble each other so much that there is no difficulty in recognizing each particular element. This is so constantly the case in the various compounds of erbium, didymium, and cobalt, and in the ordinary salts of uranium, that for a long time the more I studied this question, the more did it appear to be a general rule, and there seemed to be no reason to suspect...

Bibliografische Informationen