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Contents: Stated Meetings: Jan. 2d, Jan. 16th, Feb. 6th, Feb. 20th, March 6th, March 20th, April 3d, April 17th, May 1st, May 15th, 1874; The Brown Hematite Ore Banks of Spruce Creek, Warrior’s Mark Run, and Half Moon Run, in Huntingdon and Centre Counties, PA..., by J.P. Lesley; Investigation of Iron Ores and Limestones from Messrs. Lyon, Shorb & Co’s Iron Ore Banks on Spruce Creek, Half Moon Run and Warrior’s Mark Run,...PA, by F.A. Genth; On a Supposed Allotropic Modification of Phosphorus, by Edwin J. Houston; Abstract of the Remarks of Prof. Cope at the Meeting of the APS, Jan. 16, 1874; Origin of Attractive Force, by Pliny Earle Chase; On the Latent Heat of Expansion in Connection with the Luminosity of Meteors, etc., by B.V. Marsh; On the Plagopterinae and the Ichthyology of Utah, by Edward D. Cope; On the Zoology of a Temporary Pool on the Plains of Colorado, by E.D. Cope; Saving-Fund Life-Insurance, by Pliny Earle Chase; A Downward Atmospheric Circulation, as One Cause of Extremes of Cold, by Lorin Blodget; Meteorological Pecularities of New England, by William F. Channing; Note on the Color of the Moon, by Persifer Frazer, Jr.; Note on the Somerset County Coal Beds in Pennsylvania, by John Fulton; Cosmical Evoution, by Pliny Earle Chase; Electrical Spectra of Metals, by Alex E. Outerbridge, Jr. Illus.
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