May, 1842.] 171 



Mr. J. W. Rulon presented specimens, in skin, of 



Corvus albicollis, ~] 

 Circfetus ecaudatus, ! 

 Aquila rapax, { 



Ibis Hagedasch, J 



Gypaetos barbatus, 



Mr. Gliddon presented the collection of geological and other 

 specimens from Egypt, referred to in his late letter, consist- 

 ing of: 



16 specimens of fossil wood, partly in the agatised state from the 



'' Petrified Forest" in the Eastern Desert, near Cairo. 



1 specimen calcareous incrustation, } , ~ 



7 r i r , ' > 2nd Cataract. 



1 do. ferruginous do. 5 



2 Jasper Boulders. Western Desert. 



Sienite, being the fragment of a monument at Medinet Habou, 

 Thebes. 



Sandstone, fragment of a Monolith. 1st Cataract. 



Desert Sand; Abu Simboul, Nubia. 



27 Specimens of Fossil Shells and Bones, from Wady el Tigh, in 

 the Eastern range, near Cairo. 



20 Specimens of Minerals, including Jaspers, Agates, Selenite, 

 Quartz Crystals, &c, &c. 



White Limestone, being part of the lining of the shattered sanctu- 

 ary of the Brick Pyramid, of Dashoor. 



DONATIONS TO LIBRARY. 



Proceedings of the American Philosophical Society. Vol. 

 2nd, No. 21, 1S42. From the Society. 



Transactions of the Linnean Society. Vol. IS, Part 4th, 

 1841 ; with portions of the Proceedings of the same ; being 

 the contents of the parcel referred to at last meeting. 



WRITTEN COMMUNICATIONS. 



A letter was read from Dr. Frederick Tamnau, dated Ber- 

 lin, Prussia, Dec. 20th, 1S41, proposing an exchange of mine- 

 ral productions from Germany, Norway, Sweden, &c, for 



25 



