CONTENTS — CONTINUED FROM NEXT PAGE. 



Garnet mistaken for Corundum, 



Trenton Gravel and its Relation to the 



Rand. Theo. D. The Northein Belt of Serpentine in Radnor 



Township, 

 Cardeza, Dr. J. M. 

 Lewis, H. C. The 



Antiquity of Man, .... 

 Lewis, H. C. Note on Philadelphite — a new Mineral, 

 Haines, Reuben. Analysis of Philadelphite, 

 Genth, F. a., Jr. The so called Emery-Ore from Chelsea, 



Bethel Township, Del. Co., Pa., 

 Rand, Theodore D. Change of Serpentine into Quartz, 

 Lewis, H. C. A new locality for Sideritc, 



Magnetite Markings in Muscovite, 



A new locality for Asbolif e, 



W. A new locality for Fluorite, 



Epidote in ^Molybdenite, 



Rand, Theo., D. A new locality for Millerite, 



Lewis, H. C. The Optical Characters of some Micas, 



A new locality for Analcite, 



On the Measurement of Plane Angles, 



On an Exfoliated Talc, 



Tin in North Carolina, 



D. A new locality for Gypsum, 



On Siderophyllite —a new Mineral, 



On Sterlingite and Damourite, 



Vanalirum in Philadelphia Rocks, 



A new locality for Epsomite, 



The Surface Geology of Philadelphia and vicinity 



Chromite near Radnor, Pa., 



On Randite, 



D. Some Microscopic Enclosures in Mica, 



On the Bryn Mawr Gravel, ■ 



On some Enclosures in Mica, . 



On Dendrites, 



On a Jurassic Sand, . 



D. Potsdam Sandstone near King of Prussia, 



WiLLCOX, Jos. Some new Mineral localities, 



Lewis, H. C. On Philadelphite (Sp. Nov.), 



Lewis, H. C. A Potsdam Sandstone Outcrop on the S 



Hill of Chester Valley, .... 



Potts, Edw. Fresh-water Sponges of Fairmount Park, 



KoENiG, Geo. A. Notes on .Jarosite. 



Leidt, Jos., M. D. Rhizopods in the Mosses of the summit of Roan 



Mountain, N. C, . 



FooTE, A. E. On Large Sphene from Canada, 

 Meehan, Thos. (Jn the Timber Line of High Mountain's, 

 Redfield, J. H. On the Timber Line of High Mountains, 

 Leidy, Jos., M. D. Bone Caves of Pennsylvania, 

 Meehan, Thos. Dimorijhic Flowers in Houstonia, 

 Meehan, Thos. Cleistogamy in Oxalis Acetosella, L., 

 Martindale, Isaac C. Sexual Variations in Castanea Americana, • 



Lewis, H. C. 

 Lewis, H. C. 

 Jefferis, W. 

 Lewis, H. C. 



Foote, a. E. 

 Lewis, H. C. 

 Lewis, H. C. 

 Lewis, H. C. 

 Rand, Theo. 

 Lewis, H. C. 

 Lewis, H. C. 

 Lewis, H. C. 

 Lewis, H. C. 

 Lewis, H. C. 

 Rand, Theo. D. 

 Rand, Theo. D. 

 Rand, Theo. 

 Lewis, H. C. 

 Lewis, H. C. 

 Lewis, H. C. 

 Lewis, H. C. 

 Rand, Theo. 



Valley 



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830 



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