Table of Contents

October 1876; Volume s3-12,Issue 70

Invertebrate paleontology

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On cephalization; Part V, Cephalization a fundamental principle in the development of the system of animal life
James D. Dana

American Journal of Science October 1876, s3-12 (70) 245-251; DOI: https://doi.org/10.2475/ajs.s3-12.70.245

Applied geophysics

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Electromagnetic machine constructed at the Cornell University workshop
William A. Anthony

American Journal of Science October 1876, s3-12 (70) 251-254; DOI: https://doi.org/10.2475/ajs.s3-12.70.251

Oceanography

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Sea-bottom deposits observed during the cruise of the Challenger in a report to Prof. Wyville Thomson
John Murray

American Journal of Science October 1876, s3-12 (70) 255-270; DOI: https://doi.org/10.2475/ajs.s3-12.70.255

Mineralogy

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On gmelinite from Nova Scotia
A. B. Howe

American Journal of Science October 1876, s3-12 (70) 270-274; DOI: https://doi.org/10.2475/ajs.s3-12.70.270

Economic geology of ore deposits

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On the occurrence of durangite in the tin-bearing region of Durango, Mex
Henry Garber Hanks

American Journal of Science October 1876, s3-12 (70) 274-276; DOI: https://doi.org/10.2475/ajs.s3-12.70.274

Economic geology of energy sources

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On the occurrence of grabamite in the Huasteca, Mex., and notice of the geology of that region
James Putnam Kimball

American Journal of Science October 1876, s3-12 (70) 277-286; DOI: https://doi.org/10.2475/ajs.s3-12.70.277

Stratigraphy

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On a geological chart of the United States east of the Rocky Mountains and of Canada
Frank Howe Bradley

American Journal of Science October 1876, s3-12 (70) 286-291; DOI: https://doi.org/10.2475/ajs.s3-12.70.286

Extraterrestrial geology

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Observations upon the latest planetoids
C. H. F. Peters

American Journal of Science October 1876, s3-12 (70) 291; DOI: https://doi.org/10.2475/ajs.s3-12.70.291