THE 
POUKNAL OF GEOLOGY 
NOVEMBER-DECEMBER, 10913 
DIASTROPHISM AND THE FORMATIVE PROCESSES. IV 
REJUVENATION OF THE CONTINENTS 
T. C. CHAMBERLIN 
University of Chicago 
That extensive peneplanation and wide sea-transgression had 
already taken place as early as the Ordovician period will scarcely 
be questioned by those who have studied the relations of_ the 
Paleozoic to the Proterozoic and Archean terranes. That wide 
ERRATA 
No. I, p. 30 (article by Warren D. Smith): In the bottom paragraph, 
‘because the northern part of Luzon has been longest wder water”’ should 
read, “‘ because the northern part of Luzon has been longest above water.” 
The title of the map (p. 31) should read: Map Showing Physiographic 
Districts of Luzon. 
North America. And yet, notwithstanding the intricacy and 
strength of the early reliefs, about one-half of North America was 
not only well peneplaned as early as the Mid-Ordovician stage, 
Vol. XXI, No. 8 673 
