Aldrich, Thomas Bailey, 1836-1907 · Boston, CT : Hall and Locke · leaf 109
he Carboniferous, known as the Permian,which are really the last stages of the coal-bearingperiod. When with the changing time we pass to the bedsknown as the Triassic, which were made just after theclose of the Carboniferous time, we find the earthundergoing swift changes in its life. The moist… … 82 Wonders of Earth, Sea, and Sky life made very rapid advances. The plants are seento undergo considerable changes. The ferns no longermake up all the forests, but trees more like the pines began to abound, and insectsbecame more plentiful andmore varied. Hitherto the only land back-boned animal…
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