Aldrich, Thomas Bailey, 1836-1907 · Boston, CT : Hall and Locke · leaf 61
kind; the pow-der becoming graduallyunited into solid rock. There is yet anotherway in which limestoneis made, quite differentfrom all these. Some-times streams of waterhave a large quantity oflime in them ; and theseas they flow will drop layers of Hme which harden intorock. Or a lime-laden… … 1. White Coral. 2. Portion of aBranch (magnified). So there are different kinds of fossil rock-making.There may be rocks made of other materials, withfossil simply buried in them. There may be rocks What the Earths Crust is Made of 37 made entirely of fossils, which have gathered in massesas they…
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