286 



J. C. BRANNER — DECOMPOSITION OF ROCKS IN BRAZIL. 



Total Range of Temperature {Fahrenheit) for exposed Rocks. 

 (* indicates maximum reading in rays of the sun from direct observations.) 



Place. 



Manaus, Amazonas 



Para 



Oeiras, Piauhj' 



Ceara * 



Pernambuco 



Bonito, Pernambuco "^ 



Aguas Bellas * 



Piranhas, Alagoas. . . . . 



Bahia 



Rio de Janeiro * , . 



Rio de Janeiro 



Rio de Janeiro 



Rio de Janeiro ^ 



Rio de Janeiro * 



Barbacena '^' 



Queluz, Minas 



Pirapora, Minas 



Sao Paulo 



Sao Paulo 



Itii, 8. Paulo 



Tatuhy, S. Paulo 



Campos do Jordao, S. Paulo 



Curitiba (20 ks. E. of) *. . . . 



Parana 



Rio Grande do 8ul 



Toml)ador, ^latto Grosso*. 

 Ui)per Paraguay 



Maxi- 

 mum. 



153 



145 (?) 



149 



115 



134 



146 



145 



150 



145 



117 



117 



117 



152 



120 



139 



136 



148 



141 



129 



139 



146 



127 



145 

 150 

 135 

 144 

 152 



Mini- 

 mum. 



Varia- 

 tion. 



71 

 70 



66 



75 



64 



62 



72 



61 



70 



46 



65 



70(?) 



56 



36 



46 



45 



47 



47(?) 



52 



47 



50 



72 

 75 



49 



59 



82 



83 



78 



84 



47 



71 



52 



82(?) 



54 

 103 



90 

 103 



94 



82(?) 



87 



94 



77 



Authority 



24 

 62 

 68 

 45 



126 

 73 

 76 

 107 



Re vista de Engenharia (1). 



Wallace (2). 



Spix and Martins (3). 



Pompeo de Souza (4). 



A. B. Pereira (5). 



Branner. 



Branner. 



Roberts (0). 



Draenert (7). 



Wilkes Expl. Exped. (8). 



Obs. Astron., Oct., 1883 (9). 



Spix and ^Martins (10). 



Capauema (11). 



Caldcleudi (12). 



Dent (13). 



D. Pedro II R'v (14). 



Wells (15). 



Com. Geol. de S. Paulo (16). 



Com. Geol. de S. Paulo (17). 



Com. Geol. de S. Paulo (16). 



Com. Geol. de S. Paulo (16). 



Revist. do Obser. Ast. do Rio, 



1886, 76. 

 Luther Wagoner (21). 

 Bigg-Wither (annual) (18). 

 Revista Engenharia (19). 

 Branner. 

 Severiano da Fonseca (20). 



♦Melloni has shown that radiation reduces the temperature of some bodies 8 degrees centi- 

 grade below tiie temperature of the air (Amer. Jour. Sci.. 1849, vol. viii, p. 47), and that at the ground 

 the temperature is 5 or 6 degrees centigrade lower than it is 4 or 5 feet above it (Compt. Rend . vol. 

 XXV, 1847, pp.501, 502). It is probable, therefore, that this range of temperature should be increased 

 somewhat. 



1. Revista de Engenharia, v, 1883, p. 334. 



2. Travels on the Amazon and Rio Negro. Alfred R. Wallace. London, 1870, p. 420. 



3. Reise in Brasilien, vol. ii, p. 782. 



4. En-^aio Estatistico da Provincia do Ceara. Thomaz Pompeo de Souza Brazil. 1863, p. GO. 



5. Observa9oes meteorologicas. Antonio Bernardino Pereira do Lago. Revist. Inst. Hist., 1883, 



xlvi, pt. i, pp. 61-101. 



6. Relatorio de W. M. Roberts sobre o Rio S. Francisco. Rio de Janeiro, 1880, N., p. 7. 



7. Meteorologia da parte septentrional da Bahia de Todos os Santos. M. F. Draenert. Revista 



de Engenharia, 1882, iv, p. 28. 



8. U. S. Exploring Exped., vol. xi, Meteorology. Charles Wilkes. Philadelphia, 1851, p. 72. 



9. Annaes do Imp. Obser. do R. de J. and Bui. Astr. et Met. de I'Observ. Imp. de R. de J. for 1881- 



'83. The temperatures are "sans abri," but just what is meant is not explained. 



10. Travels in Brazil (Eng. ed.), vol. i, pp. 264, 272. 



11. Apontamentos sobre Seccas do Ceara. G. S. de Capanema. Rio de Janeiro, 1878, p. 13. 



12. Travels in South America. Alex. Caldcleugh. London, 1825, vol. i, p. 17. 



13. A Year in Brazil. H. C. Dent. London, 1886, p. 322, et seq. 



14. Revista de Engenharia, 1882, iv. p. 125. 



15. Three thousand miles through Brazil. London, 1886, vol. ii, pp. 317, 319. 



16. Dados climatologicos de 1892 da CommissAo Geologica de S. Paulo, pp. 34, 37, 38, 41. 



17. Professor O. A. Derby, private correspondence. 



18. Pioneering in South Brazil. Thos. P. Bigg-Wither. London, 1878, vol. ii, p. 307. 



19. Revista de Engenharia, 1882, iv, p. 100. 



20. Viagem ao redor do Brazil. JoHo Severiano da Fonseca, i, p. 204. 



21. Private correspondence ; observation January 27, 1870. 



