346 PROCEEDINGS OF THE ACADEMY OF [1884. 



bracing points of interest in tlie neigliborhood of the cit}^, and 

 extending to the terminal moraine, on the line of the Delaware 

 and Lackawanna Railroad in New Jersey, and the " mountain 

 colonnades " of Orange, were participated in by a fair proportion 

 of the class. 



The condition of the collections of the Academy in the depart- 

 ment of paleontology has been materially improved during the 

 year, a complete re-arrangement of the fossils of this country < 

 having been effected. The work of identifying and labeling has 

 made considerable progress, and it is hoped that in a short time 

 proper attention may be given to the rich collections illustrating 

 European paleontology as well. 



The additions during the year, which are recorded elsewhere, 

 have been neither very numerous nor important. A fine series 

 of Oligocene fossils from Germany, comprising nearl}^ 200 

 species, has been obtained from Dr. Otto Meyer, in exchange for 

 American Tertiary forms. The Academy is also indebted to Mr. 

 Joseph Willcox for an extensive series of the Nummulitic rock 



of Florida. 



Very respectfully, 



Angelo Heilprin, 

 ProfesHor of Invertebrate Paleontology. 



REPORT OF THE PROFESSOR OF MINERALOGY. 



The Professor of Mineralogy respectfully reports that during 

 the spring months of 1884, he delivered a course of twenty lec- 

 tures upon the Geology and Mineralogy of Eastern Pennsylvania. 

 The alternate lectures were given in the open air, and consisted 

 of studies in the field at localities of geological and mineralogical 

 interest in the vicinity of Philadelphia. At the close of the 

 course a more extended excursion was taken to Mauch Chunk, 

 Hazleton, and Drifton, where, through the kindness of friends, 

 unusual facilities were offered for studying the geological struc- 

 ture and the methods of mining anthracite coal. A description 

 of the "field lectures," as reported in a daily newspaper, is here- 

 with presented. The average attendance was nearly forty per- 

 sons, of whom more than one-half were ladies. 



