Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 45American Philosophical Society, 1906 |
Інші видання - Показати все
Загальні терміни та фрази
abundant actinolite albite Amer analysis arkose average basic Calaveras Valley California carinthine cause cent centimeters of acid chemical Coast Ranges concepts crossite crystals cubic centimeters deep depth developed diabases diorite earth earth's crust earthquakes eclogites electric elevation epidote eruption explosive face fact feldspars fluid forces Franklin garnet geological glauco glaucophane schist globe gneiss gram H₂O heat hornblende igneous rocks islands K₂O land lava lawsonite layer litter logical mass Measured Calculated metamorphism mica miles mineral minutes mountains movement nature observed occur ocean original paragonite parallel pargasite phane phenomena Philadelphia plagioclase plants Poland China present pressure principles probably Prof Professor Milne pseudodiabases pseudodiorites pyritohedron pyroxenes quantity quartz recrystallized regions remarkable sea bottom sea waves seeds seems shore siliceous solution South steam submarine subsidence sulphuric acid surface temperature theory tion titanite trisoctahedron trough U. S. Geol upheaved vapor volcanoes zoisite ΙΟ
Популярні уривки
Сторінка 76 - This is certain, things however absolute and entire they seem in themselves, are but retainers to other parts of nature, for that which they are most taken notice of by us.
Сторінка 65 - It is said that the birth rate is steadily falling, that the average stature of men is lower by two inches at least than it was a century ago, that the physical force is less among the peasants at their homes. Legoyt tells us that "it will take long periods of peace and plenty before France can recover the tall statures mowed down in the wars of the Republic and the First Empire.
Сторінка 65 - I set the cost of armadas and the sacrifice of soldiers and friars sent to the Philippines. And this I count the chief loss. For mines give silver and forests give timber, but only Spain gives Spaniards, and she may give so many that she may be left desolate and constrained to bring up strangers
Сторінка 361 - In the first sentence he says, " the distribution of land and sea in particular regions does not endure throughout all time, but it becomes sea in those parts where it was land, and again it becomes land where it was sea, and there is reason for thinking that these changes take place according to a certain system, and within a certain period.
Сторінка 127 - Europe, and great part of North America. This fog was of a permanent nature ; it was dry, and the rays of the sun seemed to have little effect towards dissipating it, as they easily do a moist fog, arising from water. They were indeed rendered so faint in passing through it, that, when collected in the focus of a burning-glass, they would scarce kindle brown paper. Of course, their summer effect in heating the earth was exceedingly diminished. Hence the surface was early frozen. Hence the first snows...
Сторінка 67 - amidst ever-deepening misery they struggled on, until of the 600,000 men who had proudly crossed the Niemen for the conquest of Russia, only 20,000 famished, frost-bitten, unarmed spectres staggered across the bridge of Korno in the middle of December.
Сторінка 397 - The Greeks, who like ourselves, attributed the oscillations of the ground to the tension of elastic fluids, cited in favour of their opinion, the total cessation of the shocks at the island of Eubcea, by the opening of a crevice in the Lelantine plain.
Сторінка 346 - There must therefore be some excess of matter in the solid parts of the earth between the Pacific Ocean and the earth's centre, which retains the water in its place. This effect may be produced in an infinite variety of ways; and therefore, without data, it is useless to speculate regarding the arrangement of matter which actually exists in the solid parts belowf.
Сторінка 123 - ... all philosophical experiments that let light into the nature of things, tend to increase the power of man over matter, and multiply the conveniences or pleasures of life.
Сторінка 15 - The volume of the 10-mile rocky crust, including the mean elevation of the continents above the sea, is 1,633,000,000 cubic miles, and to this material we may assign a mean density not lower than 2.5 nor much higher than 2.7. The volume of the ocean is put at...