76 J. C. BRANNER — GEOLOGY OP NORTHEAST COAST OP BRAZIL 



but it seems probable that they are a part of the Cretaceous area of the 

 interior of Piauh^ and Ceara. 



In comparing the geology and geography along this railway with that 

 along the Estrada Central, we find these two railways crossing similar 

 belts as follows : 



1. The low coastal plain of mangrove swamps and the sandy plain of 

 Areias and Boa Viagem. 



2. The narrow line of Tertiary hills ending near Tigipio, on the Cen- 

 tral, and between Una and Cabo, on the Recife ao Sao Francisco line. 



3. A belt of low hills of crystalline rocks ending on the Central road 

 at the base of the Serra da Russa, and on the Recife ao Sao Francisco 

 line near Canhotinho, or possibly somewhat farther east. 



4. An elevated region from which Paleozoic (?) sediments have been 

 partly removed. On the Central railway this region begins with the 

 Serra da Russa ; on the Recife ao Sao Francisco it begins near Canhotinho, 

 and, extending westward, forms the mountain tops to and beyond Aguas 

 Bellas. 



Gp:ology along the Estrada de Ferro Central de Pernambuco* 



railroad stations 



The following is a list of the stations, distances, and elevations on the 

 Estrada de Ferro Central de Pernambuco : 



Kilometers 

 from the 

 Central, 



Pernambuco, 



Station. 



Elevation 

 above tide. 





 6 



8 



\6 



27 



38 



51 



64 



72 



89 



112 



127 



136 



161 



180 



Central (Pernambuco) 



Areias 



Tigipio 



Socorro 



Jaboatao 



Morenos 



Tapera , 



Victoria 



Francisco Glycerio 



Russinlia 



Gravata 



Bezerros 



Goncalves Ferreira. . . 



Caruarii 



Sao Caetano 



Antonio Olvntho 



Meters. 



2.4 



5.0 



11.0 



45.6 



85.6 

 155.0 

 146.0 

 194.8 

 308 8 

 446.0 

 459.0 

 509.1 

 537.7 

 548.6 

 565.0 



* For the privilege of examining the geology along this railway I am indebted to Dr Antonio 

 Pai Pires Ferreira, the obliging director of the railway at the time of my visit. Doctor Ferreira 

 has also kindly furnished me with a large scale map of the line of the railway, and has sent me 

 specimens of the Sao Caetano marble. 



