BRANNER: THE STONE REEFS OF BRAZIL. 283 
PLATE 59. 
View of the stone reef at Pernambuco, drawn by F. Post in 1645 and published 
by Barlaeus in 1647. See page 202. 
PLATE 60. 
Map of the stone reef at Cabo Santo Agostinho, published by Caspar Barlaeus in 
1647. (Rerum per octennium in Brasilia op. p. 140.) See page 71. 
PLATE 61. 
Map of the stone reef at Natal, Rio Grande do Norte, published by Barlaeus in 
1647. Compare Fig. 13, page 37. 
PLATE 62. 
Fortaleza dos Reis Magos — the fort on the sandstone reef at Natal, Rio Grande do 
Norte. Probably drawn by Е. Post about 1645 and published by Barlaeus in 
1647, Compare Plates 20a and 20b. 
PLATE 63. 
Tertiary(?) bluffs at Bahia Formosa, State of Rio Grande do Norte. The sloping 
upper beds are old sand dunes. See page 122. 
PLATE 64, 
Tertiary (2) bluff at Pipa, with brown sand on top of it. Looking westward from 
the anchorage. Bluff about two hundred feet high. See also Plate 63. 
PLATE 65. 
Characteristic topography of the Pernambuco coastal sand plain near Boa Viagem. 
See pages 137 and 138. 
PLATE 66, 
Tertiary bluff at Santa Cruz, State of Bahia, See pages 141-142. 
PLATE 67. 
The gorge of the Rio São Francisco, at Piranhas. See page 148. 
PLATE 68. 
An elevated beach at Ponta de Areia, Bay of Bahia, two kilometres north of São 
Thomé. See page 150. 
