WOODWORTH: GEOLOGICAL EXPEDITION TO BRAZIL AND CHILE. 35 
found no local indications of elevation. The results of this journey 
are contained in my remarks on the coast of Chile. (p. 132). 
December 23th.— Being due at Santiago on Christmas day [I left 
Valdivia, journeying northward by rail through the Longitudinal Valley 
of Chile, with a stop at San Rosendo to make a study of the Pleisto- 
cene terrace deposits on the Rio Bio Bio. 
In ascending the valley of the Calle Calle 
through the gorge in the Coastal Cordillera, 
the crystalline schists were observed to 
have the same steep eastward dip as in the 
Tumbres Peninsula in the latitude of Con- 
cepcion. The rock-bench which is so pro- 
nounced a feature about the shores of 
Corral and the Valdivia River along the 
Calle Calle above Valdivia becomes suf- ,, , 
: . 1a. 6.— Section showing how 
fused with gravels, presumably Pleistocene. upended Gartucs G0'é cobiie: 
Pebbles of nonschistose rocks abound, — stone became striated by 
indicating the derivation of the materials  {°" Nee heat ce aan 
from the Tertiary and voleanicrocks within chile. 
the Longitudinal Valley. 
From December 25th, 1908, until January 5th, 1909, I remained in 
Santiago in attendance on the sessions of the First Pan-American 
Scientific Congress. I have published a brief note on the geological 
papers read at this meeting. (Woodworth, 1909). 
Under the guidance of Dr. Phillipi, a visit was made to the Museum 
of natural history and to the Museum of the mining society. Among 
the collections of this Society I was shown several remarkably intricate 
examples of stones carved by the sand-blast. These were gathered 
on the surface of the desert of Atacama by Mr. Carlos Sundt. In some 
cases large holes had been eaten through irregularly carved fragments 
of rocks by this insidious process. Through the courtesy of Major 
Montessus de Ballore I was also permitted to examine the Seismological 
Observatory then in process of installation in the hill of Santa Lucia 
in Santiago. ‘This is the principal station of the seismological service 
of Chile. From Santiago I proceeded to Valparaiso for embarkation 
on a steamer bound for Panama. 
The Valparaiso Earthquake of August 16, 1906. While waiting in 
Valparaiso for the sailing of the steamship Limari, a day was 
devoted to a casual examination of the effects then visible of the 
disastrous earthquake of August 16, 1906. As has been so often 
observed in the downthrow of maritime cities by earthquakes, the 
