5g 2 [Proc. B.N.F.C, 



U.S.A. — New York — Academy of Sciences. 



Annals, Vol. XXV., pp. 1-308. 



„ XXVII., pp. 193-203, 205-214. 



„ Philadelphia — Academy of Natural Science of — 



Proceedings, Vol. LXVIIL, Tart 2; and Vol. LXIX., Part 1. 



,, Washington — Geological Survey. 



Bulletins, 627, 630, 635, 636. 638, 640 (B., D., E.), 641 (B., C, D., 



E.), 645, 649. 

 Water Supply Papers, 360, 384, 387, 395. 

 Mineral Resources, 1915, Part 1, Nos. 3, 4, 5 and 7. 



1915, Part 2, Nos. 12, 13, 14, 16, 17, 19 and 20. 

 Professional Papers, No. 98 (I., J., K., M., N.) ; No. 91. 



,, Washington — Government Printing Works. 



Smithsonian Reports, 2389, 2391 to 2397. 

 Museum Report for 1915-16. 



,, Washington — U.S. Department of Agriculture. 



Year Book for 1915-16. 

 ,, Wisconsin — Academy of Science, Art and Letters. 



Transactions, Vol. XVIIL, Part 2. 





