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* The chairman, Pror. C. A. Joy, read a letter from Mr. C. M. 
WHEATLEY, dated Phcenixville, Pennsylvania, February 8, 
1871, announcing the discovery by him of a Bone Cave near 
that place in the Auroral Limestone, the floor of which is 
covered with the remains of Post-Pliocene Mammalia, Reptiles, 
Insects and Plants. Prof. E. D.° Cope is engaged with Mr. 
Wheatley in working up the Vertebrates. Mr. Horn will 
probably study the Insects, and it is proposed to submit the 
Plants to Prof. Newberry. There have been, so far, found 
the following genera: Megalonyx, 1. Mylodon, 1. Masto- 
don, 1. Tapirus, 1. Hquus, 1. ? (Actinodactyle), 1. 
Ursus, 2. ? Bat, 1. Lepus, 1. Seturus, 1. Hespe- 
ronys, 1. ? Rodents, 2. Coluber, 2. Tropidonotus, 2. 
Crotalus,1. Cistudo, 2. ? Turkey, 1. 2 Snipe, 
1. Coleoptera, 5. Plants, 10 or more. Say 22 Vertebrates, 
5 Insects and 10, or more, Plants. The Bear is the full size 
of the “Grizzly.” Prof. Cope says it is entirely distinct in 
character from all the existing species of North America and 
the northern regions of the old world, as well as from the 
Cave Bear. 
The following paper was read, 
“On some New Derivatives of Albumen.” 
By O. Loew. 
The author has succeeded in obtaining several new 
derivatives of Albumen; among these a Nitro-product, the 
existence of which was previously unsuspected. A mixture 
of one vol. of fuming Nitric acid and 8 vols. of concentrated 
Sulphuric acid was made. 90 C. C. of the Nitric acid was 
mixed with 270 ©. C. of Sulphuric acid and the mixture 
allowed to cool; then 30 grms. of finely-powdered Albumen 
was gradually added, shaking well after each addition and 
taking care that the mixture remained cool. The Albumen 
was slowly dissolved to a clear solution without any disen- 
gagement of Nitrous fumes, and the solution surrounded by 
cold water, was poured, after a lapse of about 10 hours, into 
