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The Tutelo Tribe and Language
Vol 21, Iss 114, Page 1, Date 1883
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The Latitude of Haverford College Observatory
Vol 21, Iss 114, Page 78, Date 1883
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On a Crinoid with Movable Spines
Vol 21, Iss 114, Page 81, Date 1883
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The Role of Parasitic Protophytes. Are They the Primary, or the Secondary Cause of Zymotic Diseases?
Vol 21, Iss 114, Page 88, Date 1883
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On the Reversion of Series and Its Application to the Solution of Numerical Equations
Vol 21, Iss 114, Page 93, Date 1883
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On the Conversion of Chlorine into Hydrochloric Acid, as Observed in the Deposition of Gold from Its Solutions by Charcoal
Vol 21, Iss 114, Page 102, Date 1883
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Stated Meeting, May 4, 1883
Vol 21, Iss 114, Page 109, Date 1883
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A Brief Account of the More Important Public Collections of American Archæology in the United States
Vol 21, Iss 114, Page 111, Date 1883
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Photodynamic Notes, VIII
Vol 21, Iss 114, Page 120, Date 1883
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Introduction to a Study of the North American Noctuidæ
Vol 21, Iss 114, Page 134, Date 1883
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A Revision of the Lysiopetalidæ, a Family of Chilognath Myriopoda, with a Notice of the Genus Cambala
Vol 21, Iss 114, Page 177, Date 1883
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On the Morphology of the Myriopoda
Vol 21, Iss 114, Page 197, Date 1883
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Stated Meeting, May 18, 1883
Vol 21, Iss 114, Page 209, Date 1883
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Stated Meeting, June 16, 1883
Vol 21, Iss 114, Page 211, Date 1883
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Stated Meeting, July 20, 1883
Vol 21, Iss 114, Page 212, Date 1883
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Stated Meeting, August 17, 1883
Vol 21, Iss 114, Page 213, Date 1883
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The Perry County Fault. Note on an Important Correction in the Geological Map of Pennsylvania
Vol 21, Iss 114, Page 218, Date 1883
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Note on a Relic of the Native Flora of Pennsylvania, Surviving in Perry County
Vol 21, Iss 114, Page 226, Date 1883
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On the Equivalent of the New York Portage, in Perry County, Middle Pennsylvania
Vol 21, Iss 114, Page 230, Date 1883
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Note on the Genus Rensselaeria in the Hamilton Group in Perry Co
Vol 21, Iss 114, Page 235, Date 1883
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Note on a Large Crustacean from the Catskill Group of Pennsylvania
Vol 21, Iss 114, Page 236, Date 1883
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Obituary Notice of Henry Seybert
Vol 21, Iss 114, Page 241, Date 1883
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The Zone of Asteroids and the Ring of Saturn
Vol 21, Iss 114, Page 263, Date 1883
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Stated Meeting, October 19, 1883
Vol 21, Iss 114, Page 280, Date 1883
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Stated Meeting, Nov. 2, 1883
Vol 21, Iss 114, Page 282, Date 1883
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Letter of Leo Lesquereux
Vol 21, Iss 114, Page 286, Date 1883
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Stated Meeting, November 16, 1883
Vol 21, Iss 114, Page 290, Date 1883
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Aerial Ships
Vol 21, Iss 114, Page 301, Date 1883
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Detailed Section of Chemung Rocks Exposed in the Gulf Brook Gorge at Le Roy, Bradford County, Pennsylvania
Vol 21, Iss 114, Page 304, Date 1883
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Stated Meeting, December 7, 1883
Vol 21, Iss 114, Page 306, Date 1883
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On the Distribution of the Loup Fork Formation in New Mexico
Vol 21, Iss 114, Page 308, Date 1883
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Second Addition to the Knowledge of the Puerco Epoch
Vol 21, Iss 114, Page 309, Date 1883
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On the Trituberculate Type of Molar Tooth in the Mammalia
Vol 21, Iss 114, Page 324, Date 1883
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Stated Meeting, December 21, 1883
Vol 21, Iss 114, Page 329, Date 1883
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A Note Respecting the Correct Name of the Last Letter of the English Alphabet
Vol 21, Iss 114, Page 330, Date 1883
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The Microscopic Examination of Timber with Regard to Its Strength. A Contribution from the Eli K. Price Botanical Laboratory of the University of Pennsylvania
Vol 21, Iss 114, Page 333, Date 1883
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Stated Meeting, January 4, 1884
Vol 21, Iss 114, Page 343, Date 1883
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A Grammar of the Cakchiquel Language of Guatemala
Vol 21, Iss 115, Page 345, Date 1884
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On a Case of Human Congenital Malformation
Vol 21, Iss 115, Page 413, Date 1884
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Stated Meeting, February 15, 1884
Vol 21, Iss 115, Page 423, Date 1884
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Stated Meeting, March 7, 1884
Vol 21, Iss 115, Page 424, Date 1884
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Obituary Notice of Dr. Robert Bridges
Vol 21, Iss 115, Page 427, Date 1884
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Stated Meeting, March 21, 1884
Vol 21, Iss 115, Page 447, Date 1884
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Stated Meeting, April 5, 1884
Vol 21, Iss 115, Page 450, Date 1884
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Obituary Notice of Strickland Kneass
Vol 21, Iss 115, Page 451, Date 1884
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Note on a Possible Geographical Meaning for the Set Griffin
Vol 21, Iss 115, Page 455, Date 1884
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Stated Meeting, April 18, 1884
Vol 21, Iss 115, Page 457, Date 1884
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Stated Meeting, May 2, 1884
Vol 21, Iss 115, Page 484, Date 1884
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Stated Meeting, May 16, 1884
Vol 21, Iss 115, Page 486, Date 1884
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On the Clinton and Other Shales, &c., Composing the Fifth Group of Rogers in the First Survey of Pennsylvania
Vol 21, Iss 115, Page 492, Date 1884
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On the Structure of the Skull in the Elasmobranch Genus Didymodus
Vol 21, Iss 116, Page 572, Date 1884
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Stated Meeting, June 20, 1884
Vol 21, Iss 116, Page 611, Date 1884
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Notes upon the Codex Ramirez, with a Translation of the Same
Vol 21, Iss 116, Page 616, Date 1884
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The Pennsylvania Prison System
Vol 21, Iss 116, Page 651, Date 1884
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Notes on the Stromateidœ
Vol 21, Iss 116, Page 664, Date 1884
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Stated Meeting, Aug. 15, 1884
Vol 21, Iss 116, Page 672, Date 1884
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Stated Meeting Sept. 19, 1884
Vol 21, Iss 116, Page 674, Date 1884
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Thermometrical Observations in Quito, Ecuador. Farenheit
Vol 21, Iss 116, Page 676, Date 1884
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Stated Meeting, October 3, 1884
Vol 21, Iss 116, Page 685, Date 1884
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On Some Indian Picture Rocks in Fayette County, Pa
Vol 21, Iss 116, Page 687, Date 1884
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Stated Meeting, October 17, 1884
Vol 21, Iss 116, Page 689, Date 1884
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Trap Dykes in the Archœan Rocks of Southeastern Pennsylvania
Vol 21, Iss 116, Page 691, Date 1884
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Notes on the Natural Bridge of Virginia
Vol 21, Iss 116, Page 699, Date 1884
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Stated Meeting, November 7, 1884
Vol 21, Iss 116, Page 700, Date 1884
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Stated Meeting, November 21, 1884
Vol 21, Iss 116, Page 702, Date 1884
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Stated Meeting, December 5, 1884
Vol 21, Iss 116, Page 705, Date 1884