. Chamber's scientific reader : illustrated with wood engravings. Readers. QUATERNARY OR RECENT PERIOD. 171 which low islands rose crowned with palms, while the savage shark and sword-fish swam, in the surrounding waters ; the elephant ranged through the tall groves on shore ; the hippopotamus wallowed in the fresh-water lakes ; the rhinoceros crashed through rank jungles ; the mastodon, mammoth, and tapir trod in forests of palm ; and the wild ox and buffalo roamed over wide grassy prairies. 2. The Cold Tertiary Period.—Immediately above the strata just described, with these strange organisms
. Chamber's scientific reader : illustrated with wood engravings. Readers. QUATERNARY OR RECENT PERIOD. 171 which low islands rose crowned with palms, while the savage shark and sword-fish swam, in the surrounding waters ; the elephant ranged through the tall groves on shore ; the hippopotamus wallowed in the fresh-water lakes ; the rhinoceros crashed through rank jungles ; the mastodon, mammoth, and tapir trod in forests of palm ; and the wild ox and buffalo roamed over wide grassy prairies. 2. The Cold Tertiary Period.—Immediately above the strata just described, with these strange organisms that speak of a warm climate, are found remarkable accumulations of sand, often found pure in hillocks; gravel, and clay interspersed with rounded worn boulders, known under. Scale of a Fig. 94.—Megatherium. the general^ title of the < Boulder Clay,' some of the boulders being of enormous size. From various phenomena, as shewn in a former chapter, it has been proved that the climate became arctic in character, and our country and others enveloped from shore to shore in a vast ice-sheet, like the Greenland of to-day. From the ends of this huge ice mantle, immense masses broke off and floated away as icebergs. By and by, however, the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original London : W. & R. Chambers
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Keywords: ., bookcentury1800, bookdecade1870, bookpublisherlondo, bookyear1872
