Aldrich, Thomas Bailey, 1836-1907 · Boston, CT : Hall and Locke · leaf 85
-ence of animals and plantsupon it possible, and whenthe atmospheric conditionsnecessary to their mainte-nance were already estab-hshed. Many of the namesgiven to these periods areby no means significant oftheir character, but aremerely the result of acci-dent : as, for instance, thatof Silurian,… … Fossil Scorpion.—SilurianPeriod. America the Old World 59 named after the country of Devonshire in England,where it was first investigated. Upon this follows theCarboniferous period, with the immense deposits of coalfrom which it derives itsname. Then comes the Per- /^A^f^\ Omian period, named,…
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