Nature, Volume 9Sir Norman Lockyer Macmillan Journals Limited, 1874 |
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Página 58
... thickness amounts to about 1,700 feet . From the Caradoc rocks of the Lead Hills the geolo- gical surveyors have obtained a good series of fossils . We miss from their list the whole of the graptolites so abundant in and so ...
... thickness amounts to about 1,700 feet . From the Caradoc rocks of the Lead Hills the geolo- gical surveyors have obtained a good series of fossils . We miss from their list the whole of the graptolites so abundant in and so ...
Página 73
... thickness of the walls , is paralleled by that of the great ventral nerve - mass in Sagitta . The contractile chord which runs to the water - sac is probably attached to a capsular covering of the ganglion , rather than directly to the ...
... thickness of the walls , is paralleled by that of the great ventral nerve - mass in Sagitta . The contractile chord which runs to the water - sac is probably attached to a capsular covering of the ganglion , rather than directly to the ...
Página 111
... thickness is folded again and again upon itself . The present surface has been cut across these foldings , and in great part has its inequalities inde- pendent of them . If we could flatten these curved rocks out again from their ...
... thickness is folded again and again upon itself . The present surface has been cut across these foldings , and in great part has its inequalities inde- pendent of them . If we could flatten these curved rocks out again from their ...
Página 127
... thicker plates without loss of light . If we take a plate of tourmalin cut parallel to a parti- cular direction within the crystal called the optic axis ( the nature and properties of which will be more particularly ex- plained ...
... thicker plates without loss of light . If we take a plate of tourmalin cut parallel to a parti- cular direction within the crystal called the optic axis ( the nature and properties of which will be more particularly ex- plained ...
Página 128
... thickness of the crystal ; in Fig . 2 it indicates the com- plete extinction of the light . The same alternation of brightness and extinction will continue for every right angle through which the moving plate is turned . Now it is to be ...
... thickness of the crystal ; in Fig . 2 it indicates the com- plete extinction of the light . The same alternation of brightness and extinction will continue for every right angle through which the moving plate is turned . Now it is to be ...
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Academy acid action angle animals Anoura apparatus appear Arctic astronomers atmosphere axis birds body branchial arches carbonic acid coast College colour Connaissance des Temps connection containing described direction effect electric examination exhibited existence expedition experiments fact fossils frog genus geological give given graptolites greywacke heat illustrated important insects interest island known lectures light Llandeilo lower magnetic matter means ment Meteorological method microscope miles millimetres motion muscles Museum Natural History Nautical Almanac North observations obtained oxygen ozone P. L. Sclater paper photographs physical plane plate polarisation portion position present president produced Prof published question remarks rocks Royal Society Science scientific Scotland Silurian sound South Southern Uplands species specimens spectrum sphygmograph surface temperature theory thickness tion Trilobites tube vertebrate vibrations vivisection wave-length weight Zoological
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Página 250 - HAECKEL (Prof. Ernst) — THE HISTORY OF CREATION. Translation revised by Professor E. RAY LANKESTER, MA, FRS With Coloured Plates and Genealogical Trees of the various groups of both plants and animals. 2 vols. Second Edition. Post 8vo. cloth, price 32*.
Página 178 - Physics and Politics ; or, Thoughts on the Application of the Principles of "Natural Selection " and " Inheritance
Página 35 - FRS, vicepresident, in the chair. The Secretary read a report on the additions that had been made to the Society's menagerie during the months of June, July, August, and September.
Página 241 - Price 3s. 6d. plain, 4s. 6rf. coloured, gilt edges. " A happy mixture of fact and fiction. Altogether it is one of the best books of the kind we have met with."— Guardian.
Página 197 - ... in suspension more than three parts by weight of dry mineral matter, or one part by weight of dry organic matter in 100,000 parts by weight of the liquid.
Página 201 - BEETON'S SCIENCE, ART, AND LITERATURE : A Dictionary of Universal Information ; comprising a complete Summary of the Moral, Mathematical, Physical, and Natural Sciences ; a plain Description of the Arts ; an interesting Synopsis of Literary Knowledge, with the Pronunciation and Etymology of every leading term. The work has been with great care Revised, Enlarged, and newly Illustrated. *»* There is no volume extant comparable to this for the amount of information compressed into a small space.
Página 300 - The Treasury of Botany, or Popular Dictionary of the Vegetable Kingdom ; with which is incorporated a Glossary of Botanical Terms.
Página 152 - WHERE THERE'S A WILL THERE'S A WAY; or, Science in the Cottage ; being Memoirs of Naturalists in Humble Life.
Página 323 - It may be said that the fact makes a stronger impression on the boy through the medium of his sight, that he believes it the more confidently. I say that this ought not to be the case. If he does not believe the statements of his tutor — probably a clergyman of mature knowledge, recognised ability, and blameless character — his suspicion is irrational, and manifests a want of the power of appreciating evidence, a want fatal to his success in that branch of science which he is supposed to be cultivating.
Página 160 - An Introduction to Physical Measurements, with Appendices on Absolute Electrical Measurement. &c. By Dr. F. Kohlrausch. Translated from the Second German Edition by TH Waller, BA, B.Sc., and HR Procter, FCS (London : J. and A. Churchill, New Burlington Street, 1873.) MESSRS. TH WALLER and HR Procter have furnished us with a translation of the second edition of Dr. KoYrausch's "Physical Measurements," to which they have auded several useful Appendices and Tables.