OF THE SERGIPE-ALAGUAS IJASIX OF BRAZIL. 1-3 



Part IY. 



bibliography. 



BiIiliof/rci])Jn/ of the Geology of Sen/ipe-AIar/uas Basin. 



AsoNTMOCs Ahticles : A Cominissuo Geologica do Brazil, published iii "O Vulgarisador" newspaper of Rio de 

 Janeiro, Brazil, November 3, 1877. 



The same article was reprinted in " O Novo Mundo," an illustrated periodical published in New York, Vol. 

 VIII, January, 1878, pp. 18-19. 



The article gives a brief sketch of the region explored and the collections made 

 by the Imperial Survey. 



COMSTOCK. T. B.— American Journal of Science, X[, June, 1877, pp. 4GG-473, contains an abridged report by Prof. 

 Charles F. Flartt upon the work of the Commissao Geologica do Brazil, translated by T. B. Comstock from 

 the report printed in Portuguese. See Ilarlt, ]{elalorio Pruliuiiuar do Traballios da Commissao Geologica na 

 Provincia de Pernambuco. 



Dehby, Orville A. — O Brazil Gfiographico e Ilistorico ; A Terra e o Homem, por J. E. Wappaeus, Rio de Janeiro, 



18S4. 



This book iii)on the pliy.sical geoj:frapliy, natural history, etc., of Bi-azil, is the 

 work of several collaborators, the f^eology (Chap. V, p. 44 et seq.) having been writ- 

 ten by Mr. Derby. He mentions the provinces in which cretaceous and tertiary 

 foi-mations arc found, and gives a small map showing their general distribution, and 

 remarks that the relation between the cretaceous along the coast and that at highei- 

 elevations is not known. 



Deubt, O. a. — Contributions to the Paleontology of Brazil, by Charles A. While. 



The descriptive part of this important work, pp. 7-14, is by Mr. Derby, and is 

 the most important paper yet published upon the stratigraphy of the mesozoic and 

 tertiary geology of Brazil. The leading facts known to liiin legardiug all the Bra- 

 zilian cretaceous localities, except those of S.io Francisco do Sid, are given. The 

 theory advanced by Mr. Derby, however, to the effect that the Ceai'a beds '"appear to 

 be a distinct series*' because they ri.se to a greater elevation than other kuowu locali 

 ties, is criticised on pages 408-410 of the present paper. 



DEtiny. O. .\. — Contril>ii:(;>s para o Eatndo da Geologia do ViiUe do Rio SAo Francisco, pel") Dr. O. \. jtrihy, piib- 

 liOicd in llie Ardiivo.s do Muf^eu Nncioiial, Vol. IV. 1879, ]t. 87 et xq. 



In counccticin with the "iio\ocr\ of the lower Sao Francisco, Mr. Deiby takes 

 occasion to sketcli and discuss the cretaceous and tertiary geology of the euliri- 



