BOSTON 



JOURNAL OF NATURAL HISTORY. 



VOLUME VII. — NO. 11. 



Art. II. — Observations upon the Geology and Paleon- 

 tology of Burlington, Iowa, and its Vicinity. By 

 Charles A. White. 



The interest with which the lovers of geological science 

 have come to look upon this locality, in consequence of 

 its affording the greatest variety of Carboniferous fossils, 

 in the most perfect state of preservation, and also of its 

 exhibiting the junction of two of the great geological 

 systems, the Devonian and Carboniferous, has made 

 it desirable that a more detailed description of its rocks 

 and their contents should be made known. This has been 

 done to a considerable extent in the reports of Dr. D. D. 

 Owen, and Prof. James Hall, and also in some degree by 

 Dr. B. F. Shumard, and Messrs. Norwood and Pratten. 

 But in consequence of the limited time that either of 

 these gentlemen could give to any one locality, many of 

 the details and minor facts were omitted, and among these 

 are some which have since assumed more importance than 

 they were formerly supposed to possess. Later discover- 

 ies, also, show an intimate and interesting relation to exist 

 between the lower beds, which have upon the best autlior- 



JOURNAL B. S. N. II. 27 SEPT. 1860. 



