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604 pages first pub 1880 (editions)

nonfiction science challenging informative reflective medium-paced
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622 pages first pub 1880 (editions)

nonfiction science challenging informative reflective medium-paced

614 pages first pub 1880 (editions)

nonfiction science challenging informative reflective medium-paced

480 pages first pub 1880 (editions)

nonfiction science challenging informative reflective medium-paced

480 pages first pub 1880 (editions)

nonfiction science challenging informative reflective medium-paced

missing page info first pub 1880 (editions)

nonfiction science challenging informative reflective medium-paced

608 pages first pub 1880 (editions)

nonfiction science challenging informative reflective medium-paced

642 pages first pub 1880 (editions)

nonfiction science challenging informative reflective medium-paced

missing page info first pub 1880 (editions)

nonfiction science challenging informative reflective medium-paced

546 pages first pub 1880 (editions)

nonfiction science challenging informative reflective medium-paced

480 pages first pub 1880 (editions)

nonfiction science challenging informative reflective medium-paced