The Student, and Intellectual Observer, Volume 3Groombridge and Sons, 1869 |
Contents
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Common terms and phrases
acid Actinozoa Alcyonaria animal Annelides antennæ appears Barbel barrow beads belonging body branchiæ bright bristles called carbonic carbonic acid character cilia circle Coccoliths colour comet composed considerable consists copal corals costume crater curious described diameter disc distance distinct dorsal dorsal fin doubt dress earth earth-worm elytra exhibit existence feet feudal fifteenth century fish France Fritz Müller genus head heat Herschel hydrogen III.-NO illumination inches insects John Herschel known ladies length less light matter means Ménagier de Paris metal Milky month Moon mouth nearly nebulæ nucleolus nucleus objects observed organs palladium period peristome Plate polymorphus polypes portion present produced remarkable represented resemblance resin round says seen segments setæ side sidereal system solar species specimens stars Stein Stentors stones substance surface tail telescope temperature tint tion tissues tube vegetable ventral vessel worms Zoantharia
Popular passages
Page 145 - The POLAR WORLD; a Popular Description of Man and Nature in the Arctic and Antarctic Regions of the Globe. By Dr.
Page 426 - For, to say nothing of half the birds, and some quadrupeds which are almost entirely supported by them, worms seem to be the great promoters of vegetation, which would proceed but lamely without them, by boring, perforating, and loosening the soil, and rendering it pervious to rains and the fibres of plants, by drawing straws and stalks of leaves and twigs into it ; and, most of all, by throwing up such infinite numbers of lumps of earth called worm-casts, which, being their excrement, is a fine...
Page 457 - HALF-HOURS WITH THE STARS: a Plain and Easy Guide to the Knowledge of the Constellations. Showing in 12 Maps the position oi the principal Star-Groups night after night throughout the year. With Introduction and a separate Explanation of each Map. True for every Year.
Page 425 - Earth-worms, though in appearance a small and despicable link in the chain of Nature, yet, if lost, would make a lamentable chasm. For, to say nothing of half the birds, and some quadrupeds, which are almost entirely supported by them, worms seem to be...
Page 427 - On carefully examining between the blades of grass in the fields above described, the author found that there was scarcely a space of two inches square without a little heap of the cylindrical castings of worms.
Page 427 - ... which cinders had been spread out only half a year before, Mr. Darwin actually saw the castings of the worms heaped on the smaller fragments. Nor is the agency so trivial as it at first might be thought, the great number of earth-worms (as every one must be aware who has ever dug in a grass field) making up for the insignificant quantity of work which each performs.
Page 166 - I cannot give you a more exact description of its figure than by comparing it to that of a pine-tree, for it shot up to a great height in the form of a trunk, which extended itself at the top into a sort of branches...
Page 266 - ... and the result of the same general laws, which have been the groundwork through natural selection of the formation of the most perfectly adapted animals in the world, man included, were intentionally and specially guided. However much we may wish it, we can hardly follow Professor Asa Gray in his belief that " variation has been led along certain beneficial lines," like a stream "along definite and useful lines of irrigation.
Page 144 - That the alloy contains about 20 volumes of palladium united with a volume of hydrogenium ; and that the density of the latter is about 2, a little higher than magnesium to which hydrogenium may be supposed to bear some analogy. That hydrogenium has a certain amount of tenacity, and possesses the electrical conductivity of a metal. And finally, that hydrogenium takes its place among magnetic metals. The latter fact may have its bearing upon the appearance of hydrogenium in meteoric iron, in association...
Page 74 - cold area " were to be raised above the surface, so that the deposit at present in progress upon its bottom should become the subject of examination by some Geologist of the future, he would find this to consist of a barren Sandstone, including fragments of older rocks, the scanty Fauna of which would in great degree bear a Boreal character (§ 11); whilst if a portion of our "warm area" were elevated at the same time with the