The Quarterly Journal of Science, Volume 4John Churchill and Sons, 1867 |
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Results 1-5 of 99
Page 5
... contain . But of late years several geologists and palæontologists have raised objections to the percentage test , as did Mr. Charlesworth when it was first proposed . It may not be out of place , therefore , to dis- cuss the advantages ...
... contain . But of late years several geologists and palæontologists have raised objections to the percentage test , as did Mr. Charlesworth when it was first proposed . It may not be out of place , therefore , to dis- cuss the advantages ...
Page 6
... containing a large number of species of Nummulites , and not upon any percentage calculation ; while the reference of the latter to the Miocene division is wholly based on its Mammalian fauna . In Australia a very varied series of ...
... containing a large number of species of Nummulites , and not upon any percentage calculation ; while the reference of the latter to the Miocene division is wholly based on its Mammalian fauna . In Australia a very varied series of ...
Page 7
... containing a larger proportion of extinct species may be more recent than one containing a smaller proportion , in a different latitude , or possessing in past times a different climate . When the percentage test was proposed , the ...
... containing a larger proportion of extinct species may be more recent than one containing a smaller proportion , in a different latitude , or possessing in past times a different climate . When the percentage test was proposed , the ...
Page 20
... containing nests of olivine , a material which could only have been elaborated by the aid of great pressure , and under a different configuration of the surface from that now existing . To descend to particulars - the granitic formation ...
... containing nests of olivine , a material which could only have been elaborated by the aid of great pressure , and under a different configuration of the surface from that now existing . To descend to particulars - the granitic formation ...
Page 33
... contain too small a depth of water for the majority of the vessels hitherto in use ; three such steamers , calculated to draw only 12 inches of water , are now in course of construction for the river Godavery . Should they prove ...
... contain too small a depth of water for the majority of the vessels hitherto in use ; three such steamers , calculated to draw only 12 inches of water , are now in course of construction for the river Godavery . Should they prove ...
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action ammonia amongst amount animals Annelids appears atmosphere attention body British Cader Idris carbonic acid Carboniferous causes chemical cholera coal colliery colour considerable containing copper deposits described districts effect electric Eocene evidence Exhibition existence experiments fact favour feet fossil Geological geologists give glaciers heat hydrogen important inches India interesting iron Journal labour lakes light Liverpool Loch Katrine London Manchester matter means metal meteors miles mineral mines Miocene nature nitrogen North notice observations obtained occur organic original oxidation oxygen paper passed period plants Pliocene portion Pratas Island present probably produced Professor published quantity Railway recently referred remarkable render river rocks Royal Royal Geographical Society sanitary sewage Silurian Sir Charles Lyell Sir John Lubbock Society solution species strata supply surface temperature thallium theory tion town valley whilst
Popular passages
Page 157 - The most insignificant insects and reptiles are of much more consequence, and have much more influence in the economy of Nature, than the incurious are aware of; and are mighty in their effect, from their minuteness, which renders them less an object of attention: and from their numbers and fecundity. Earthworms, though in appearance a small and despicable link in the chain of Nature, yet, if lost, would make a lamentable chasm.
Page 604 - SOUND : a Course of Eight Lectures delivered at the Royal Institution of Great Britain. By JOHN TYNDALL, LL.DFRS New Edition, crown 8vo.
Page 395 - The Calculus of Chemical Operations ; ' being a method for the investigation, by means of symbols, of the laws of the distribution of weight in chemical change ; Part I., on the construction of chemical symbols, 'Phil.
Page 121 - I tell you, captain, if you look in the maps of the 'orld, I warrant you shall find, in the comparisons between Macedon and Monmouth, that the situations, look you, is both alike. There is a river in Macedon ; and there is also moreover a river at Monmouth...
Page 494 - The Exhibition of 1851 is to give us a true test and a living picture of the point of development at which the whole of mankind has arrived in this great task, and a new starting point from which all nations will be able to direct their further exertions.
Page 283 - ... -0067 in diameter, by its making a powerful electro-magnet, by its decomposing water, and by other tests. The explanation of these effects is as follows : — The electro-magnet always retains a slight residual magnetism, and is therefore in the condition of a weak permanent magnet ; the motion of the armature occasions feeble currents in alternate directions in the coils thereof, which, after being reduced to the same direction, pass into the coil of the electro-magnet in such...
Page 142 - A General Dictionary of Geography, Descriptive, Physical, Statistical, and Historical ; forming a complete Gazetteer of the World. By A. KEITH JOHNSTON, FRSE 8vo. 31s. 6d. M'Culloch's Dictionary, Geographical, Statistical, and Historical, of the various Countries, Places, and principal Natural Objects in the World.
Page 158 - ... 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 manure for grain and grass.
Page 15 - ... type in a great many groups of animals of long-continued geological existence. In these groups there is abundant evidence of variation — none of what is ordinarily understood as progression; and, if the known geological record is to be regarded as even any considerable fragment of the whole, it is inconceivable that any theory of a necessarily progressive development can stand, for the numerous orders and families cited afford no trace of such a process.
Page 481 - A crest of topaz is no better in the struggle for existence than a crest of sapphire. A frill ending in spangles of the emerald is no better in the battle of life than a frill ending in the spangles of the ruby.