PERMO-CARBONIFEROUS GLACIAL DEPOSITS 313 
times a thin layer of conglomerate, the series being closely related 
to the tillite and sometimes interstratified with it, as in many 
sections of Pleistocene glacial deposits. 
The next point visited was near Capivary, reached by a 
narrow-gauge railway from Campinas, where a delightful walk of 
18 kilometers disclosed excellent sections of tillite containing typi- 
cally shaped and sometimes striated stones (Fig. 1) including 
Fic. 1.—From Capivary, Sao Paulo, Brazil 
bowlders of sandstone, quartzite, conglomerate, and granite 
occasionally reaching a diameter of one meter. The coarse con- 
glomerate forming some bowlders quite suggests the Huronian 
tillite of Cobalt, Ontario, and their source in Brazil is unknown. 
The tillite has a thickness of three or four meters and rests on soft, 
stratified sandstone or sandy shale sometimes cross-bedded. In 
one place it is covered by a sheet of trap mostly weathered into 
the bright-red ‘“‘terra roxa’’ which forms the best soil for coffee and 
sugar plantations. 
A visit was made to a section near Villa Raffard, about four 
kilometers southwest of Capivary, to see some large bowlders of 
