42 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



PREVIOUS INVESTIGATIONS 



At various times during the last 10 years reference has been 

 made in the literature on west coast Geology to the presence 

 of Oligocene and Miocene fossils at Restoration and Beans 

 points on the north shores of Richs Passage. In 1904 Dr. 

 Ralph Arnold, in his paper on the Tertiary and Quaternary 

 Pectens of California, refers to certain "shales near Beans 

 Point, King County^" which contain a fauna of probable 

 Oligocene age. Note is made concerning the occurrence of 

 Pccten peckhami Gabb at U. S. G. S. localities 4112a and 4113, 

 between Beans and Restoration points, King County. Pecten 

 claUamcnsis Arnold is noted at Beans Point and "is associ- 

 ated with TercbraUila, sp., Turrit ella, sp., Marginella or Erato, 

 sp., Natica or Liinatia, sp., Glycimeris, sp., and Astyris, sp." 



In 1909, Dr. W. H. DalP, in his paper on the Miocene of 

 Astoria and Coos Bay, Oregon, mentions the occurrence of 

 Oligocene strata at Port Blakeley and Restoration Point, op- 

 posite Seattle. The following species are listed from these 

 localities : Ampullina mississippieusis Conrad, Miopleiona in- 

 diirata Conrad, Turcicula ivashingtoniana Dall and Aturia an- 

 gustata Conrad. 



In 1911, the writer^ in a preliminary paper on the Tertiary 

 Palaeontology of Western Washington described the occur- 

 rence of lower Miocene strata and fossils in the Restoration 

 Point and Blakeley Harbor area and provisionally referred 

 to them as the Blakeley formation. These strata were recog- 

 nized as a part of an extensive lower Miocene series involved 

 in the north flank of a well-defined anticline trending- from 

 east to west across the Puget Sound basin. 



The most recent report involving a discussion of the Resto- 

 ration Point area is to be found in a paper by Arnold and Han- 

 nibal* on the Marine Stratigraphy of the North Pacific Coast 

 of America, published in 1913. A three- fold division of the 

 Oligocene is recognized : The San Lorenzo or lower, the 



^Arnold, Ralph, The Tertiary and Quaternary Pectens of California. Professional 

 Paper 47, U. S. Geological Survey, 1906. 



^Dall, Dr. W. H., The Miocene of Astoria and Coos Bay, Oregon. Professional 

 Paper 59, U. S. Geological Survey, 1906. 



^Weaver, C. E., A Preliminary Report on the Tertiary Palaeontology of Western 

 Washington. Bull. 13, Wash. State Geol. Surv., 1912. 



*Arnold, Ralph, and Hannibal, Harold, The Marine Tertiary Stratigraphy of the 

 North Pacific Coast of America, Proc. Am. Phil. Soc, vol. 52, pp. 573-579, 1913. 



