. The Family tutor . Y\s. 64. 124. NATURAL PHILOSOPHY. to its proper liydrostatic level, and therefore, in many instances, will overflow at itsmouth. The region of country in which this water originally fell may have been manymiles distant. [* London stands in a hollow, of which the first or innermost layer is a basin of clay,placed over chalk, and on boring through the clay (sometimes of 300 feet in thickness)the water issues, and in many places rises considerably above the surface of the ground,showing that there is a higher source or level somewhere.—Dr. Ai-notVs Elements ojPhysics, 3rd ed.
. The Family tutor . Y\s. 64. 124. NATURAL PHILOSOPHY. to its proper liydrostatic level, and therefore, in many instances, will overflow at itsmouth. The region of country in which this water originally fell may have been manymiles distant. [* London stands in a hollow, of which the first or innermost layer is a basin of clay,placed over chalk, and on boring through the clay (sometimes of 300 feet in thickness)the water issues, and in many places rises considerably above the surface of the ground,showing that there is a higher source or level somewhere.—Dr. Ai-notVs Elements ojPhysics, 3rd ed., p. 275.] It follows, from the action of gravity on liquids, that if we have several which differin specific gravity in the sane vessel, they will arrange themselves according to theirdensities. Thus, if into a deep jar we pour quicksilver, solution of sulphate of copper,water, and alcohol, they will arrange themselves in the order in which they have beennamed. CHAPTER XIII OF FLOWING LIQUIDS AND HYDRAULIC MACHINE
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Keywords: ., bookcentury1800, bookdecade1850, bookpublisherlondo, bookyear1851