434 THE CRETACEOUS AND TERTIARY GEOLOGY, ETC. 



paper contains brief notes upon the stratigraphic geology, which are credited to the 

 notes of Mr. Derby. 



Reade, T. Mellard. — Denudation of the two Americas, by T. Mellard Reade, CE., F.G.S. American Journal of 

 Science, Vol. XXIX, No. 172, April, 1885, pp. 290-300. Substance of Presidential Address to the Liverpool 

 Geological Society, Session 1884-5. 



A part of this paper is devoted to the rate of denudation of the Amazon basin, 

 and references are made to the nature and distribution of the rocks. 



Sampaio, Theodoro Fernandes. — Revista de Ertyenliaria, Vol. VI (1884), pp. 52-54. InformaQSes a respeito dos 

 caracteres geologicos do territorio comprehendido entre a cidade de Alagoinhas e a do Joazeiro, por Theodoro 

 Fernandes Sampaio. 



Short but valuable notes upon the geology of the region along the railway line 

 from Alagoinhas to the Rio Sao Francisco. The second chapter treats of the tertiary 

 region, which is said to extend from Alagoinhas to Agua Fria, a distance of fifty-six 

 kilometres. 



Smith, Herbert II.— Do Rio de Janeiro a Ciiyaba. Kotas de um Naturalista, por Herbert II. Sniilh, Rio tic Janeiro, 



1887. 



Reference is made, i)p. 10-11, to the evidences of the elevation of the eastern 

 coast of Brazil (Rio) during the quaternary. 



Williamson, B. — On the Geology of the Parahyba and Pernambuco Gold Regions, by E. Williamson. Transaction 

 of the Manchester Geological Society, Part Vll, Vol. VI. 



This paper is devoted to the occurrence of gold and to the geology of the crys- 

 talline and metamorphic rocks of the region. A valuable note is given on the lime- 

 stones and the tertiary beds which cover them. 



Woodward, Henrt. — The Tertiary Shells of the Amazon Valley, by Henry Woodward. From the Annals and 

 Magazine of Natural History, for January and February, 1871. 



—Challenger Reports. Narrative, Vol. I, Part I, p. 215-217. 



The soundings and dredging along the Brazilian coast indicate that the ocean's 

 bottom is here remarkable for the absence of animal remains and glauconite, and that 

 it is covered by fine red mud (pj). 215-217). 



