XXX BULLETIN NO. 23, UNITED STATES NATIONAL MUSEUM. 



specimens of the " foot-marks " of the Cheirothermm, and a fine collec 

 tioii of meteorolites, second only to tliat of Vienna. 



Dr. Lea called nimu Professor Ereuburg, who received him very 

 kindly. . He showed him many Foraminifcrce and Polythelamice. Some 

 of theui were in tlint below the coal. On a part of the specimen there 

 was a Spinfeia similar to those of the (Silurian formation. He also 

 showed him some forms from Barbadoes which came from marl con- 

 stituting a hill 800 feet high and some miles in extent. These 

 forms he said differ from all others except those from Nicobar. He 

 had chalk, limestone, and mud of rivers from nearly every part of 

 the globe, and had made out nearly one thousand species. Having 

 spent the morning with him, Dr. Lea left deeply impressed with admi 

 ration for a scientist who so ably carries out the object of his pursuit" 

 and who had made himself the leader among scientific men who have 

 engaged themselves in his branch of Science. 



Dr. Lea saw Professor Ewald, who had recently returned from the 

 Hartz Mountains. He was studyiugthepaleontology of the lower strata, 

 and showed him many specimens of fossil mollusca and particularly 

 some from the Devonian which appeared to Dr. Lea to be too new for 

 that formation. Among them were Ifaticcc with three dark bands of 

 color. He also had iron ore with fossil shells, encriuites, «S:c., very 

 much like the Danville beds which are Formation V of Rogers's survey; 

 but he thought them to be immediately next below the coal measures, 

 whereas Formation Y is considerably lower than the coal, it being For- 

 mation XIII of the Pennsylvania survey. Dr. Lea then called on Pro- 

 fessor Beyrick,at the suggestion of Humboldt, who told him that the 

 professor was engaged on the papers of Von.Buch, and would edit a 

 complete edition of his works. He found Professor Beyrick to be an 

 ardent student of geology, young and active. He was then examining 

 the Tertiary formation of Prussia. He told Dr. Lea that he had found 

 some particular forms which would connect the Eocene and Mioceue so 

 as to show the gradual " nuance " of these two masses. 



He gave the geologists of the United States full credit for their ac- 

 tivity. The " Mauvaises terres " in ISI^ebraska interested them all, and 

 he mentioned that Von Biich had commenced a jiaper on that subject a 

 few days before his death. He wished Dr. Lea to attend a meeting of 

 the geological society, which was to be held that evening. Dr. Lea 

 having been made a member, but other engagements prevented his at- 

 tendance. At Cassel Dr. Lea called on Dr. Duuker and Dr. Pfeiflfer, 

 both distinguished malacologists, having previously met them at Wies- 

 baden. Both are large contributors to our knowledge of the land and 

 fresh-water mollusca of the whole globe. He went over the collections 

 of Unionidw of both gentlemen and named doubtful specimens. They 

 were both very attentive, and Dr. Lea parted with these naturalists 

 with great regret. 



While at Frankfort he called upon Dr. KUppell, having a letter from 



