The Encyclopaedia Britannica: A Dictionary of Arts, Sciences and General Literature, 10. köideA. et C. Black, 1879 - 856 pages |
From inside the book
Results 1-5 of 98
Page 214
... rocks which have been discovered on any part of the globe have probably been derived from other rocks older than themselves . Geology by itself has not yet revealed , and is little likely ever to reveal , a trace of the first solid ...
... rocks which have been discovered on any part of the globe have probably been derived from other rocks older than themselves . Geology by itself has not yet revealed , and is little likely ever to reveal , a trace of the first solid ...
Page 222
... rocks being due to some of its combinations. Chloride of sodium ( common salt ) Percentage . 75.786 Chloride of magnesium .. 9 : 159 Chloride of potassium ... 3.657 Sulphate of lime ( gypsum ) .. ...... 4.617 Sulphate of magnesia ( Epsom ...
... rocks being due to some of its combinations. Chloride of sodium ( common salt ) Percentage . 75.786 Chloride of magnesium .. 9 : 159 Chloride of potassium ... 3.657 Sulphate of lime ( gypsum ) .. ...... 4.617 Sulphate of magnesia ( Epsom ...
Page 224
... rocks ) Yakutsk , Siberia , ( 656 ft . , limestone , & c . , and granite ) ( 3. ) Borings , Wells , and Mines . - The influence of the seasonal changes of temperature extends downward from the surface to a depth which varies according ...
... rocks ) Yakutsk , Siberia , ( 656 ft . , limestone , & c . , and granite ) ( 3. ) Borings , Wells , and Mines . - The influence of the seasonal changes of temperature extends downward from the surface to a depth which varies according ...
Page 225
... rocks , the conductivity must vary in different directions through the same mass , heat being more easily conducted along than across the " grain , " the bedding , and the other numerous divisional surfaces . Experiments have been made ...
... rocks , the conductivity must vary in different directions through the same mass , heat being more easily conducted along than across the " grain , " the bedding , and the other numerous divisional surfaces . Experiments have been made ...
Page 227
... rocks . A mineral may be classified as an inorganic body distinguished by a more or less definite chemical composition , and usually a characteristic geo- metrical form . A rock is an aggregate mass , sometimes of one , more commonly of ...
... rocks . A mineral may be classified as an inorganic body distinguished by a more or less definite chemical composition , and usually a characteristic geo- metrical form . A rock is an aggregate mass , sometimes of one , more commonly of ...
Other editions - View all
Common terms and phrases
abundant acid ancient angle appear augite axis basalt beds carbonic carbonic acid centre century character chemical coal coast cone consists contains crust crystalline crystals deposit distance district earth equator eruption existence feet felspar formations fossils Gaelic Galatia gallic acid galls galvanometer Gaur gelatin gems geological globe gneiss granite Greek heat hornblende igneous igneous rocks important iron islands known lake land latitude lava less lime limestone longitude mass materials matter meridian metamorphic miles mineral mountain observed obtained occur ocean organic original orthoclase parallel Paris passing period plane porphyritic portion present pressure produced quartz regions remains rise river rocks Roman round sand sandstone schists Scotland sediment shales side siliceous Silurian sometimes species specific gravity square miles stones strata stream structure substance surface temperature thick tion town traced upper vapour vertical volcanic voyage whole