132 Kansas Academy of Science. 



Consequently the stratigraphical work in the interior has been 

 more of a reconnaisance; also, as a result, the division lines be- 

 tween the formations indicated on the map are merely suggestive. 



In submitting this paper I wish to state that Dr. James Perrin 

 Smith, professor of palaeontology in Leland Stanford University, 

 iias had general supervision of the classifying of the fossils herein- 

 after described, and has also reviewed the manuscript for me. I 

 also wish here to thank Dr. John Casper Branner, of Leland Stan- 

 ford University, for the aid rendered me by him. 



PREVIOUS LITERATURE. 



So far as the writer is able to learn, the literature directly con- 

 cerned with the geology and natural aspects of this region is con- 

 fined to six papers. 



Mr. S. C. Gilman,* a civil engineer, visited the central moun- 

 tainous part of this region in 1895, of which he gives a fairly 

 accurate map and a good general description. 



Messrs. Dodwell and Rixon,"^ while making an expert forestry 

 examination of the Olympic forest reserve, added some notes of in- 

 terest to the geologist concerning the region. 



j Mr. H, S. Conrad/ in his article on "The Olympic Peninsula, 

 Washington," gives some geological observations on the south- 

 western coast of the peninsula which are of interest. 



Mr. Ralph Arnold visited the region in June and July, 1904, and 

 bas since published papers on "'Coal in Clallam County, Washing- 

 ton,"* ' Gold Placers of the Northwestern Coast of Washington,"^ 

 and a "Geological Reconnaisance of the Coast of the Olympic 

 Peninsula, Washington."^ 



Some observations on the geology of the islands off the coast of 

 the peninsula are also included. by Dr. W, L. Dawson in his article 

 on "The Bird Colonies of the Oiympiades."' 



LOCATION. 



The region here under consideration is in northwestern Wash- 

 ington. It covers an area of about 8000 square miles, or an area 

 about the size of Rhode Island, Delaware and Connecticut com- 

 bined. It extends approximately 100 miles in a north and eouth 



1. S. C. Gilman: The Olympic Country. National Geographic Magazine, vol. 7, 1896, pp. 133- 

 140. pi. 16. 



2. Arthur Dodwell and Theodore F. Rixon : Forest Conditions in the Olympic Forest Reserve, 

 Washington. Professional paper, U. S. Geol. Surv., No. 7. 110 pages. 20 plates. 1 map. 1902. 



3. Science. N. S., vol. 21. No. 532. March 10, 1905, pp. 392-393. 



4. Contributions to Economic Geology for 1904. Bulletin No. 260, U. S. Geol. Surv.. 1905, 

 pp. 413-421. 



5. Ibid. pp. 154-157. fig. 11. 



6. Bulletin of the Geological Society of America, vol. 17, pp. 451-468, pis. 55-58. 



7. The Auk, vol.. XXV. pp. 153-166. 1908. 



