On the Leaf Scars of Lepidodendron. 91 



LOCALITIES OF THE FIGUKED FOSSILS, AND THEIE PLACES 

 OF DEPOSIT. 



PLATE V. 



Fig. 1. Mammoth Seam, Baltimore Quarries, Wilkesbarre, Pa.. Personal Collection. 



2. Mammoth Seam, Baltimore Quarries, Wilkesbarre, Pa. .Personal Collection. 



3. Lackawanna Valley.. Prof. J. S. Newberry's Coll. 



4. Diamond Seam, Park Coal Co.'s Mine, Scranton, Pa.. Personal Collection. 



PLATE VI. 



Pig 1. Mammoth Seam, Baltimore Quarries, "Wilkesbarre Personal Collection. 



2. Lackawanna Valley . .Prof. Newberry's Coll. 



3. Mammoth Seam, Baltimore Quarries, Wilkesbarre Cornell University Coll. 



4. After Lesquereux ; from Rogers' Geology of Pennsylvania. 



5. Mammoth Seam, Baltimore Quarries, Wilkesbarre Personal Collection. 



6. After Lesquereux; from Kogers' Geology of Pennsylvania. 



PLATE VII. 

 Pig. 1. Sloan Shaft, Scranton Cornell University Coll. 



2. Brisbin Shaft, Scranton Cornell University Coll. 



3. Diamond Slope, Scranton Cornell University Coll. 



4. Brisbin Shaft, Scranton Cornell University Coll. 



5. Brisbin Shaft, Scranton Cornell University Coll. 



6. Lackawanna Valley . . .Prof. Newberry's Coll. 



PLATE VIII. 



Fig. 1. Mammoth Seam, Baltimore Quarries, "Wilkesbarre Personal Collection. 



2. After Lesquereux ; from Rogers' Geology of Pennsylvania. 



3. Brisbin Shaft, Scranton Personal Collection. 



4. Lackawanna "Valley. ..Personal Collection. 



5. Brisbin Shaft, Scranton Cornell University Coll. 



6. Brisbin Shaft, Scranton Cornell University Coll. 



PLATE IX. 



Pig. 1. Brisbin Shaft, Scranton Cornell University Coll. 



2. After Lesquereux ; from Bogers' Geology of Pennsylvania. 



3. Brisbin Shaft, Scranton Personal C ollection. 



4. Nanticoke, Pa Personal Collection. 



5. Brisbin Shaft, Scranton Cornell University Coll. 



6. Mammoth Seam, Baltimore Quarriefi, "Wilkesbarre Cornell University Coll. 



7. Brisbin Shaft, Scranton Cornell Universi ty Coll. 



NOTE Br THE EDITOR. 

 It has been found impossible, from certain mechanical difficulties, to reproduce by 

 photo-lithography the smoothness and elegance of the original drawings of these figures. 

 They were prepared upon tracing-cloth, which under the powerful light requisite for 

 photographing their details, imparted to the lines a roughness, which even great care in 

 the process was unable to obviate. Their accuracy, however, may be relied upon. 



