Lectures on histology v.2, 1854, Volumen2H. Bailliere, 1854 |
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Página 77
... name being given from their consisting of a number of chambers , the second from the numerous foramina opening on the external surface of the shell of the greater number of SKELETON OF FORAMINIFERA . 77 POLYTHALAMIA OK FORAMINIFERA.
... name being given from their consisting of a number of chambers , the second from the numerous foramina opening on the external surface of the shell of the greater number of SKELETON OF FORAMINIFERA . 77 POLYTHALAMIA OK FORAMINIFERA.
Página 79
... chambers , although there are seve- ral small foramina in the septa dividing one chamber from another . Each chamber contains a single animal , from which , by a process of budding or gemmation , a second is formed , and as soon as it ...
... chambers , although there are seve- ral small foramina in the septa dividing one chamber from another . Each chamber contains a single animal , from which , by a process of budding or gemmation , a second is formed , and as soon as it ...
Página 81
... chambers . In another specimen , as shown by D E , the shells are suf- ficiently large to be seen by the unassisted eye ; these have been picked out from chalk , and mounted separately , they closely resemble the Nautilus in shape , the ...
... chambers . In another specimen , as shown by D E , the shells are suf- ficiently large to be seen by the unassisted eye ; these have been picked out from chalk , and mounted separately , they closely resemble the Nautilus in shape , the ...
Página 82
... chambers , the outer surface is com- paratively smooth . There are , however , many species- as , for instance , Polystomella crispa , represented by A , Fig . 44 - in which spines project from some part of the external surface , more ...
... chambers , the outer surface is com- paratively smooth . There are , however , many species- as , for instance , Polystomella crispa , represented by A , Fig . 44 - in which spines project from some part of the external surface , more ...
Página 83
... chambers are prolonged in a straight line like the beak of certain Ammonites from the Oxford clay . Two of the more common kinds are shown by E and F in Fig . 47 ; occa- sionally some of these are so fractured that the interior of the ...
... chambers are prolonged in a straight line like the beak of certain Ammonites from the Oxford clay . Two of the more common kinds are shown by E and F in Fig . 47 ; occa- sionally some of these are so fractured that the interior of the ...
Términos y frases comunes
250 diameters abundance acid animal animalcules appearance atlas attached axis beautiful Belemnite body Bowerbankia calcareous calcareous matter carbonate of lime cavity cell-walls cellular structure centre cilia cirrhi coloriées coloured plates composed cones consists containing coral crust Crustacea decalcified described Diatomaceæ disc Echinodermata Echinus elongated examined exhibit external fibres Flustra folio Foraminifera FOREIGN SCIENTIFIC BOOKS fossil frustules gemmules genus granular hexagonal Histoire naturelle horizontal section horny material inch joints laminæ LECTURE livraisons magnified margin membrane microscope minute Mollusca mouth nacre nacreous Oolite operculum organic basis outer surface Oyster Paris Pearls perforations periostracum planches polypes polypidom portion prismatic cellular prisms radiated represented in Fig resemble reticulated structure seen shell shown in Fig silica skeleton soft species specimens spicula spiculum spines sponge stem striæ substance tentacula thick thin tissue trace Traité transparent transverse section tubercles tubes tubular tubuli valves vertical section vols whilst York Zoophytes
Pasajes populares
Página 9 - Laws of the state of New York, in relation to the Erie and Champlain canals, together with the annual reports of the Canal commissioners, and other documents requisite for a complete official history of those works. Also, correct maps delineating the routes of the Erie and Champlain canals, and designating the lands through which they pass.
Página 51 - are literally covered in the first warm days of spring with a ferruginous-coloured mucous matter, about a quarter of an inch thick, which, on examination by the microscope, proves to be filled with millions and millions of these exquisitely -beautiful siliceous bodies. Every submerged stone, twig, and spear of grass is enveloped by F .-, them; and the waving plume-like appearance of a filamentous body covered in this way is often very elegant.
Página 188 - Now scarcely a dozen kinds of these beautiful animals live in ihe seas of our globe, and individuals of these kinds are comparatively rarely to be met with : formerly they were among the most numerous of the ocean's inhabitants, — so numerous that the remains of their skeletons constitute great tracts of the dry land as it now appears. For miles and miles we may walk over the stony fragments of the...
Página 78 - The nummulitic formation," says Lyell, "with its characteristic fossils, plays a far more conspicuous part than any other tertiary group in the solid frame-work of the earth's crust, whether in Europe, Asia, or Africa. It often attains a thickness of many thousand feet, and extends from the Alps to the Carpathians, and is in full force in the north of Africa, as, for example, in Algeria and Morocco.
Página 188 - ... creatures among the loveliest of the inhabitants of the ocean. Even in their present disjointed and petrified state, they excite the admiration, not only of the naturalist, but of the common gazer, and the name of Stone-lily popularly applied to them, indicates a popular appreciation of their beauty.
Página 413 - Wythe's Dose and Symptom Book. Containing the Doses and Uses of all the principal Articles of the Materia Medica, etc.
Página 11 - THE FISCAL HISTORY OF TEXAS: EMBRACING AN ACCOUNT OF ITS REVENUES, DEBTS, AND CURRENCY, FROM THE COMMENCEMENT OF THE REVOLUTION IN 1834, TO 1851-2, WITH REMARKS ON AMERICAN DEBTS. BY WM. M. G-OUG-E, Author of "A Short History of Paper Money and Banking in the United States,
Página 79 - Carpathians, and in full force in the north of Africa, as, for example, in Algeria and Morocco. It has also been traced from Egypt into Asia Minor, and across Persia by Bagdad to the mouths of the Indus. It occurs not only in Cutch, but in the mountain ranges which separate Scinde from Persia, and which form the passes leading to Caboul; and it has been followed still farther eastward into India.
Página 10 - The industrial resources, etc., of the Southern and Western states: embracing a view of their commerce, agriculture, manufactures, internal improvements; slave and free labor, slavery institutions, products, etc., of the South...