Table of Contents

October 1882; Volume s3-24,Issue 142

Vertebrate paleontology

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Notes on physiological optics; Part 5, Vision by the light of the electric spark
W. L. Stevens

American Journal of Science October 1882, s3-24 (142) 241-247; DOI: https://doi.org/10.2475/ajs.s3-24.142.241

Mineralogy

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On crystals of monazite from Alexander County, North Carolina
Edward Salisbury Dana

American Journal of Science October 1882, s3-24 (142) 247-250; DOI: https://doi.org/10.2475/ajs.s3-24.142.247
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On the occurrence and composition of some American varieties of monazite
Samuel Lewis Penfield

American Journal of Science October 1882, s3-24 (142) 250-254; DOI: https://doi.org/10.2475/ajs.s3-24.142.250
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Notes on some interesting minerals occurring near Pikes Peak, Colorado
Charles Whitman Cross and W. F. Hillebrand

American Journal of Science October 1882, s3-24 (142) 281-286; DOI: https://doi.org/10.2475/ajs.s3-24.142.281

Applied geophysics

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On irregularities in the amplitude of oscillation of pendulums
C. S. Peirce

American Journal of Science October 1882, s3-24 (142) 254-255; DOI: https://doi.org/10.2475/ajs.s3-24.142.254

Solid-earth geophysics

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Stresses caused in the interior of the Earth by the weight of continents and mountains
G. H. Darwin

American Journal of Science October 1882, s3-24 (142) 256-269; DOI: https://doi.org/10.2475/ajs.s3-24.142.256

Igneous and metamorphic petrology

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The Deerfield Dike and its minerals
B. K. Emerson

American Journal of Science October 1882, s3-24 (142) 270-278; DOI: https://doi.org/10.2475/ajs.s3-24.142.270

Invertebrate paleontology

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On the occurrence of Siphonotreta scotica Davidson, in the Utica Formation near Ottawa, Ont
Joseph Frederick Whiteaves

American Journal of Science October 1882, s3-24 (142) 278-279; DOI: https://doi.org/10.2475/ajs.s3-24.142.278
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On a recent species of Heteropora from the Strait of Juan de Fuca
J. F. Whiteaves

American Journal of Science October 1882, s3-24 (142) 279-280; DOI: https://doi.org/10.2475/ajs.s3-24.142.279