C. F. Bartt—Oeohgical Survey of Brazil 471 



Afterward, Dr. Freitas returned to Iguarassii, where he obtained 

 a fine collection of Cretaceous fossils, including many specimens 

 of shark's teeth and of the teeth of an enormous reptile which is 

 unknown to me. Mr. Branner then continued his study of the 

 coast south of the Cape of Santo Agostinho, examining the reefs, 

 from which he has sent me an interesting collection of corals and 

 other objects, embracing many new species. He also s 



forty additional boxes of specimens, went to Aracaju 

 province of Sergipe^ to study the Cretaceous deposits. They 

 have already [March 5] made a large collection of fossils, es^^e- 

 ci&Wy ol Ammonites, Ceratites, Naiica, Jamra, etc., with numerous 

 forms not before obtained from Brazil. * * 



Upon arriving at Eio de Janeiro, a building was hired, the 

 collections were unpacked, and I began to arrange a series of 

 specimens for the Exposition, Dr. Mills assisting me in the work. 

 About the middle of the month [December, 1875] Messrs. Derby 

 and Rathbun arrived, bringing new collections, including a typi- 

 cal series of the Carboniferous and Devonian fossils of the Ama- 

 zonas and some North American fossils to compare with them. 

 These gentlemen at once aided me in the preparations for the 

 Exposi'tion, and while this lasted they took charge of the other 

 collections. In the meantime Senhor Ferrez mounted for the 

 Exposition a collection of one hundred photographic views and 

 prepared two albums containing a nearly complete series of the 

 photographs taken for the Commission. As it was possible to 

 expose but a small portion of the collections, there were exhib- 

 ited only a series of the Cretaceous rocks and fossils, with an- 

 other series illustrating the structure of the reefs, and the col- 

 lections brought by Messrs. Derby and Eathbun. * * 



On the 1st of February, Messrs. Derby, Rathbun and Ferrez 

 were sent to Bahia, to commence the study of the geology of the 

 vicinity and to continue the examination o^ the reefs. They 

 established themselves at the station of Plataforma, and have to 

 this date [March 5] been engaged in tracing the limits of the areas 

 occupied by the different formations at the northern part of the 

 Bahia de Todos os Santos [Bay of All Saints], in collecting Cre- 

 taceous fossils, and in the study of the reefs. Already they have 

 obtained a large quantity of fossils,— teeth, bones and scales of 

 reptiles and fishes, together with Mollusks and Crustaceans. In 

 connection with the study of the recent formations and the reefs, 

 they have also made a splendid collection of marine animals. 



Two years ago, Mr. Herbert H. Smith, one of m. 

 on the Morgan Expedition of 1870, was engaged i 

 studies in the province of Para [on the Lower Am 

 some measure under my direction. Since that ti 



