Table of Contents

February 1891; Volume s3-41,Issue 242

Miscellaneous

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A solution of the aurora problem
Frank H. Bigelow

American Journal of Science February 1891, s3-41 (242) 83-89; DOI: https://doi.org/10.2475/ajs.s3-41.242.83

Mineralogy

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Columbite and tantalite from the Black Hills of South Dakota
William Parker Headden

American Journal of Science February 1891, s3-41 (242) 89-102; DOI: https://doi.org/10.2475/ajs.s3-41.242.89
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On the chemical composition of aurichalcite
Samuel Lewis Penfield

American Journal of Science February 1891, s3-41 (242) 106-109; DOI: https://doi.org/10.2475/ajs.s3-41.242.106
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Powellite; calcium molybdate; a new mineral species
William Harlow Melville

American Journal of Science February 1891, s3-41 (242) 138-141; DOI: https://doi.org/10.2475/ajs.s3-41.242.138

Economic geology of nonmetal deposits

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Notes on the geology of the Florida phosphate deposits
Horatio Darton

American Journal of Science February 1891, s3-41 (242) 102-105; DOI: https://doi.org/10.2475/ajs.s3-41.242.102

Applied geophysics

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Record of a deep well at Lake Worth. southern Florida
Horatio Darton

American Journal of Science February 1891, s3-41 (242) 105-106; DOI: https://doi.org/10.2475/ajs.s3-41.242.105

Hydrochemistry

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Compressibility of hot water and its solvent action on glass
Carl Barus

American Journal of Science February 1891, s3-41 (242) 110-116; DOI: https://doi.org/10.2475/ajs.s3-41.242.110

Stratigraphy

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An attempt to harmonize some apparently conflicting views of Lake Superior stratigraphy
Charles Richard Van Hise

American Journal of Science February 1891, s3-41 (242) 117-137; DOI: https://doi.org/10.2475/ajs.s3-41.242.117

Hydrogeology

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Brueckner's Klimaschwankungen
F. Waldo

American Journal of Science February 1891, s3-41 (242) 141-151; DOI: https://doi.org/10.2475/ajs.s3-41.242.141

Vertebrate paleontology

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The gigantic Ceratopsidae, or horned dinosaurs, of North America
Othniel Charles Marsh

American Journal of Science February 1891, s3-41 (242) 167-178; DOI: https://doi.org/10.2475/ajs.s3-41.242.167