GENERAL AND ECONOMIC GEOLOGY 231 



Journal of the Geological Society of London, volume 35, 1879, contains 

 a small scale map (plate 38) showing the distribution of recent alluvium 

 and the old river deposits of the region between the Brazilian and Peru- 

 vian frontier and the mouth of the Amazon, while the character of the 

 rocks in the adjoining areas are given and the ages of some of them are 

 stated. 



H. Karsten, 1886. — The geological sketch accompanying Ivarsten's 

 "Geologic de Tancienne Colombie bolivarienne, Venezuela, N"ouvelle- 

 Granade et Ecuador, Berlin, 1886,^^ represents the geology of the State 

 of Amazonas west of Manaus. The map is on a scale of 1 to about 7,418,- 

 000, and only two geologic divisions are shown in the Brazilian area, 

 namely, plutonic and Tertiary and Quaternary — the last two in one color. 



Bibliography of the Geology of Amazonas 



L. Agassiz : Lettre k M. Marcou sur la Geologie de la vallee de I'Amazone, avec 

 des remarques de M. Jules Marcou. Bulletin de la Societe Geologique de 

 France, 2me serie, XXIV, pages 109-111. Paris, 1866. 



Louis Agassiz : Physical Mstory of the Amazon Valley. Atlantic Monthly, 

 1866, July and August, pages 49-60, 159-169. Boston, 1866. 



Professor and Mrs. Louis Agassiz : A journey in Brazil, xix -f 540 pages, 

 illustrated. Boston, 1868. (Chapter XIII, Physical history of the Ama- 

 zons, pages 397-441, and many geological notes.) 



R. H. Blake: Notes on the alto Rio Branco, North Amazonas. Geographical 

 Journal, May, 1916, volume 47, pages 864-368. 



OsKAE BoETTGER : Die Tertiarfauna von Pebas am oberen Maranon. Jahrbuch 

 der K. K. Geologische Reichsanstalt, 1878, XXVIII Band, 3 Heft, paginas 

 485-504. 



Charles B. Brown and J. G. Sawkins : Reports on the physical, descriptive, 

 and economic geologj^ of British Guiana. 297 pages, illustrated. London, 

 1875. Geology on the Brazilian frontier. 



C. Barrington Brown and William Lidstone : Fifteen thousand miles on the 

 Amazon and its tributaries. With maps and wood engravings. 520 pages, 

 8°. London, 1878. 



C. Barrington Brown : On the Tertiary deposits on the Solimoes and Javary 

 rivers in Brazil. With an appendix by R. Etheridge. Quarterly Journal 

 of the Geological Society, volume XXXV, pages 76-88. London, 1879. 



C. Barrington Brown : On the ancient river deposit of the Amazon. Quar- 

 terly Journal of the Geological Society, volume XXXV, pages 663-777. 

 London,* 1879. 



W. Chandless : Notes on the River Aquiry, the principal affluent of the River 

 Purus. Journal of the Royal Geographical Society, volume XXXVI, pages 

 119-128, map. London, 1866. Abstract in Proceedings of the Royal Geo- 

 graphical Society, volume XI, 1866-7, pages 100-102. 



W. Chandless : Apontamento sobre o Rio Aquiry, affluente do Rio Purus. 

 Annexo (letra n) ao Relatorio do Ministro de Agricultura, etc., 1-6 

 paginas. Rio de Janeiro, 1866. 



