t)J [May 21, 



times shaly rocks of delicate gray buff and greenish colors, containing 

 calamiteS; which Prof. Condon calls the Oalamite beds. Their age is unde- 

 termined. 



In the existing Geological maps of Oregon, the Coast range is represented 

 as composed of Archtean rocks. This is a serious error. Prof. Newberry 

 has already stated (U. S. Pac. R. Pi. Surveys, Vol. VI, pt. II, p. 29), that the 

 fossils of the range are of an age not older than the Miocene. The unpub- 

 lished notes of Prof. Condon, formerly State Geologist, state that the back 

 bone of the Coast range consists of argillaceous shales which contain inver- 

 tebrate and vertebrate fossils, frequently in concretions. Some of the latter 

 are Physoclystous fishes, with strongly ctenoid scales. To this formation, 

 Dr. Condon gives the name of Astoria shales. Above this is an extensive 

 tertiary deposit, rich in Mollusca, which is usually interrupted by the cen- 

 tral elevations of the mountain axis. Prof. Condon refers this to an Upper 

 Miocene age, under the name of the Solen beds. On the flanks of the 

 mountains, this is overlaid by a pliocene formation, containing some of the 

 fossils of the Equus beds of central Oregon. This is both underlaid and 

 overlaid by basalt, and other volcanic products. 



Dr. Hayden made a few remarks further illustrating the 

 same subject. 



The Report of the Board of Officers and Council was sub- 

 mitted. 



Mr. Eli K. Price, Chairman of the Committee on the 

 Michaux Legacy, reported that the copy of the portrait of 

 Mr. Michaux, as ordered by the Society, had been executed, 

 and that he had inspected the same at the rooms of the So- 

 ciety; that the likeness was good and that after certain 

 changes in the background that he would recommend its 

 acceptance by the Society. 



Pending nominations ISTos. 904 and 909-917, and new 

 nominations Nos. 918 and 919 were read. 



And the meeting was adjourned. 



