I04 WARREN DUPRE SMITH AND EARL L. PACKARD 



the erratics of granite, quartzite, and argillite to be found here and 

 there in the Willamette and adjacent valleys in western Oregon. 

 One of these erratics is a polished and striated quartzite bowlder 

 about the size of one's head. The striations are unmistakably 

 of glacial origin. Their presence has been explained, perhaps 

 correctly, by Condon as having been dropped from icebergs floating 

 in the "Willamette Sound." It is difficult to explain the presence 

 of these on any other basis, as they could hardly have been brought 

 down from the upper Wihamette Valley, since no such rocks have 

 yet been found near the headwaters of that system of drainage. 

 However, all these rocks are found in eastern Oregon, whence they 

 might have been transported by the Columbia. 



There was undoubtedly a large body of water occupying at 

 least the lower portion of the Willamette Valley, but this, as both 

 Dr. Condon and his daughter, Mrs. McCornack, expressly stipulate, 

 was in part fresh. Thus the use of the term "sound" is perhaps 

 unfortunate. The flatness of the floor of the Willamette Valley 

 has been attributed to the presence of this sound, but is more 

 easily explained by aggradation and the lateral planation by the 

 river. 



A fauna from scattered localities within the Willamette Valley 

 has been reported by Mrs. McCornack.' The interpretation of this 

 fauna, which includes a horse, a bison, a mammoth, and a camel, 

 may have an important bearing upon the "Willamette Sound" and 

 the "Satsop" problems. 



Recent. — Among the forms of deposits and events of the Recent 

 period in Oregon we may note the following: 



1. Gravels — stream, ocean littoral. 



2. Talus — on the valley sides. 



3. Dunes along the coast and in lake region of eastern Oregon. 



4. Peat bogs in the coastal dune area. 



5. Volcanic deposits in the Cascades. 



6. Shore deposits, beaches, bars. 



This list does not pretend to give the chronological sequence, 

 about - which there is more or less conjecture. Some of these 

 undoubtedly are synchronous. About the first two little need be 

 said, as these are found everywhere. 



'Ellen Condon McCornack, Univ. Ore. Bull., XII, No. 2 (1914), 13. 



