Science, Volume 1John Michels (Journalist) American Association for the Advancement of Science, 1895 Since Jan. 1901 the official proceedings and most of the papers of the American Association for the Advancement of Science have been included in Science. |
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Página 13
... given , and such specifications shall be the standard specifications herein mentioned . Approved July 12 , 1894 . It will be desirable to add some remarks upon the steps which have been taken in the same direction by the English Govern ...
... given , and such specifications shall be the standard specifications herein mentioned . Approved July 12 , 1894 . It will be desirable to add some remarks upon the steps which have been taken in the same direction by the English Govern ...
Página 20
... given by him of an exceedingly simple character ( sometimes in practice one finds them too limited ) , one may quickly group his collection in a natural order , and by means of the literature to which refer- ence is briefly made ...
... given by him of an exceedingly simple character ( sometimes in practice one finds them too limited ) , one may quickly group his collection in a natural order , and by means of the literature to which refer- ence is briefly made ...
Página 33
... given a summary sketch of the trigonometrical methods , as applied by the ancient astronomers to the dichotomy and shadow cone of the moon , and by the mod- erns to Venus , Mars and the asteroids , and we shall next glance briefly at ...
... given a summary sketch of the trigonometrical methods , as applied by the ancient astronomers to the dichotomy and shadow cone of the moon , and by the mod- erns to Venus , Mars and the asteroids , and we shall next glance briefly at ...
Página 37
... given to the essen- tial part played by the environment . This point of view in no way sets aside the ne- cessity of assuming a specifically organized germ - plasm for every species as the basis of inheritance . It simplifies the ...
... given to the essen- tial part played by the environment . This point of view in no way sets aside the ne- cessity of assuming a specifically organized germ - plasm for every species as the basis of inheritance . It simplifies the ...
Página 41
... given the pu- pils to examine and describe . At the close of his paper , Professor Hyatt exhibited some specimens of ... given was obtained in managing classes of about 200 men at Harvard , and the plan given was worked out under the ...
... given the pu- pils to examine and describe . At the close of his paper , Professor Hyatt exhibited some specimens of ... given was obtained in managing classes of about 200 men at Harvard , and the plan given was worked out under the ...
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85 | |
137 | |
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177 | |
192 | |
216 | |
221 | |
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516 | |
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241 | |
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293 | |
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306 | |
311 | |
321 | |
361 | |
390 | |
398 | |
416 | |
421 | |
443 | |
467 | |
547 | |
557 | |
560 | |
577 | |
589 | |
614 | |
640 | |
650 | |
664 | |
668 | |
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673 | |
676 | |
684 | |
694 | |
700 | |
701 | |
714 | |
724 | |
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Palavras e frases frequentes
Abbildungen Academy American anatomy animals annual Archæology argon astronomical Auflage Biology Botany BRINTON catalogue cells centrosomes character chemical Chemistry Cloth Columbia College course Cretaceous Darwin discussion earth edition electric energy Engineering experiments fact fauna Figuren flora fossil FREDERICK BEDELL genera geographical Geological Geology germ given glacial growth HART MERRIAM HENRY HENRY FAIRFIELD OSBORN ical illustrated important interest investigation IRA REMSEN JOSEPH LE CONTE Journal known Laboratory larvæ lectures London Lord Kelvin Macmillan magnetic mathematical means measure mechanical meeting ment method Notes O. C. MARSH observations organism original ovipositor paper period Physics Physiology plants present President Prof Professor publication published recent region Scientific Literature Seiten species student surface tain temperature Text theory tion United University valley variation volume W. M. DAVIS Washington William York Zoology
Passagens conhecidas
Página 3 - If to do were as easy as to know what were good to do, chapels had been churches and poor men's cottages princes' palaces. It is a good divine that follows his own instructions : I can easier teach twenty what were good to be done, than be one of the twenty to follow mine own teaching.
Página 86 - I hold every man a debtor to his profession; from the which, as men of course do seek to receive countenance and profit, so ought they of duty to endeavor themselves, by way of amends, to be a help and ornament thereunto.
Página 45 - ... we feel sorry because we cry, angry because we strike, afraid because we tremble, and not that we cry, strike, or tremble because we are sorry, angry, or fearful, as the case may be.
Página 56 - Works by WILLIAM A. TILDEN, D.Sc. London, FRS, Professor of Chemistry in the Royal College of Science, South Kensington. A SHORT HISTORY OF THE PROGRESS OF SCIENTIFIC CHEMISTRY IN OUR OWN TIMES. Crown 8vo., y.
Página 12 - ... As a unit of electromotive force, the international volt, which is the electromotive force that, steadily applied to a conductor whose resistance is one international ohm, will produce a current of one international ampere, and which is represented sufficiently well for practical use by \\\% of the electromotive force between the poles or electrodes of the voltaic cell known as Clark's cell, at a temperature of 15° C., and prepared in the manner described in the accompanying specification...
Página 13 - Ampere, which is one-tenth of the unit of current of the CGS system of electromagnetic units and which is represented sufficiently well for practical use by the unvarying current which, when passed through a solution of nitrate of silver in water, in accordance with a certain specification, deposits silver at the rate of 0.001118 of a gramme per second.
Página 294 - Ohm, which is based upon the ohm equal to io9 units of resistance of the CGS system of electromagnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice, 14.4521 grammes in mass of a constant cross-sectional area, and of the length of 106.3 centimetres.
Página 522 - This is an excellent book, and should be in the hands of all who are interested in the construction and design of medium-sized stationary engines. . . . A careful study of Its contents and the arrangement of the sections leads to the conclusion that there is probably no other book like It in this country. The volume aims at showing the results of practical 'experience, and it certainly...
Página 391 - Lastly, physical investigation, more than anything besides, helps to teach us the actual value and right use of the Imagination — of that wondrous faculty, which, left to ramble uncontrolled, leads us astray into a wilderness of perplexities and errors, a land of mists and shadows; but which, properly controlled by experience and reflection, becomes the noblest attribute of man; the source of poetic genius, the instrument of discovery in Science, without the aid of which Newton would never have...
Página 12 - As a unit of resistance, the international ohm, which is based upon the ohm equal to 10" units of resistance of the CGS system of electromagnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice, 14.4521 grams in mass, of a constant cross-sectional area and of the length of 106.3 centimetres.