. The earth in past ages . FlG. y>. Skull of the oldest-known bird with teeth. Archae- opteryi macrura (after w. Dames). ./. orbit i f the eye, A'. pie-orbital vacuity. C. n-tril. Sci. circle <»t" bony plates run!, k. tongue bones, mm. lower jaw, mandim, bones. /. tear-bone, //. nose-bone. (After Dames.) ference from existing birds are, the elongated tail bearing feathers on each vertebra, the teeth, and the Claws on the three digits Of the hand. Close of the Oolitic period. m life took place bet ween the Kimendge i It he Portland olite which it. And although the granular Oolitic

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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyo, bookyear1902