PKEFACE. ix 



past in its possession, — an event which I think un- 

 likely to happen, and which will now be unnecessary, 

 the more especially as I am at present engaged in 

 a new reduction of my materials, and the projection 

 of a new map, the publication of which, in sufficiently 

 large form to give it topographical as well as geo- 

 graphical value, has been proposed by my distin- 

 guished and very kind friend, Dr. Augustus Peter- 

 mann, Gotlia, in his Geographical Journal. 



Papers descriptive of the botanical collection, pre- 

 pared by Mr. Elias Durand ; of the algce, by Mr. Ash- 

 mead ; of the lichens, by Professor James ; of the hirds, 

 by Mr. John Cassin ; of the invertehnda, by Dr. Wil- 

 liam Stimpson ; of the mammalia, by Dr. J. H. Slack ; 

 of the cetacea, by Professor E. Cope ; of the infusoria, 

 by Dr. F. W. Lewis ; of the fishes, by Dr. Theodore 

 Gill ; and of the imleodology, by Professor F. B. Meek, 

 have appeared from time to time in the "Proceedings 

 of the Academy of Natural Sciences of Philadelphia," 

 excepting the last, which was published in the Amer- 

 ican "Journal of Arts and Sciences." Dr. J. Atkin 

 Meigs has in preparation a monograph on ethnology, 

 based upon a collection of upward of one hundred 

 and forty specimens, and I shall soon have completed 

 a more elaborate discussion of the Greenland Gla- 

 ciers and other collateral topics than has been al- 

 lowed me by the limits and character of this work. 



I should do great injustice to my own feelings, 

 did I not here express the acknowledgment of my 

 obligation to those societies, associations, and indi- 



