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Note on the Soft Parts and Dentition of Stomatella
By: Pilsbry, H A
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 71--72
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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An Hypothesis as to the Nature and Origin of Germ Force
By: Morris , J Cheston
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 73--74
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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New Species of Fungi from Various Localities
By: Ellis , J B - Everhart , Benjamin M
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 76--93
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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Effect of Environment in the Modification of the Bill and Tail of Birds
By: Trotter , Spencer
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 118--120
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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On the Age of the Peace Creek Beds, Florida
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 120--120
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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February 24
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 122--123
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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A Review of the Cretaceous Mammalia
By: Osborn, Henry Fairfield,
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 124--135
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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Geological Researches in Yucatan
By: Heilprin , Angelo
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 136--158
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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March 17
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 160--160
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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On Some Recent Japanese Brachiopoda, with a Description of a Species Believed to Be New
By: Dall, William Healey, - Pilsbry, H A
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 165--171
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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Pedomorphism
By: Allen, Harrison
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 208--209
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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April 28
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 209--209
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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Echinoderms and Arthropods from Japan
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 210--223
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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On the External Characters of Fœtal Reindeer, and Other Notes
By: Shufeldt, Robert W. (Robert Wilson),
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 224--233
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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Notice of Some Entozoa
By: Leidy, Joseph,
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 234--236
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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May 1, Special Meeting
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 266--266
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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May 12
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 267--267
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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Memoir of Joseph Leidy, M. D., LL. D
By: Chapman, Henry C
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 342--388
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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Description of a new species of Vampyrops
By: Allen, Harrison
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 400--405
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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Mollusca from Nantucket, Mass
By: Pilsbry, H A
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 406--407
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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September 1
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 409--409
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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Notes on Some Little Known American Fossil Tortoises
By: Baur, G
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 411--430
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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October 20
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 439--439
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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A New Meteoric Iron from Garrett County, Maryland
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 455--455
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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Reptiles and batrachians from northern Yucatan and Mexico
By: Ives, J E
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 458--463
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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Echinoderms and Crustaceans Collected by the West Greenland Expedition of 1891
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 479--481
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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Report of the Recording Secretary
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 482--485
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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Report of the Librarian
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 485--487
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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Report of the Biological and Microscopical Section
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 496--497
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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Report of the Entomological Section
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 499--500
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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Report of the Professor of Ethnology and Archæology
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 506--507
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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Elections during 1891
Type: Article
In: Proceedings of the Academy of Natural Sciences of Philadelphia.
Volume: 43
Date: 1891
Page Range: 508--509
Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
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