132 FROCEEDINGS OF THE COROILLERAN SECTION 



special session in California in August, 1915. It is planned to hold the 

 meetings at the University of California, Berkeley, and at least one 

 session at Stanford University. In consideration of this, the section 

 voted to hold no separate meeting in 1915, but to use its efforts to make 

 the meeting of the General Society a success. 



AFFILIATION WITH THE AMERICAN ASSOCIATION FOR THE ADVANCEMENT 



OF SCIENCE 



The secretary announced the proposed organization of a Pacific Di- 

 vision of the American Association for the Advaucement of Science and 

 explained its constitution, and also brought up the matter of affiliation 

 of the Cordilleran Section with this Pacific Division. It was pointed out 

 that, according to the constitution of the Pacific Division, if the Cor- 

 dilleran Section became affiliated, no geological section would be estab- 

 lished by the division; but that programs in geology and the organization 

 of geology on the coast would be left entirely in the hands of the Cor- 

 dilleran Section; also that the section would not be obliged to meet with 

 the division if in its judgment it would be better for the coast geologists 

 to meet elsewhere or at a different time; also that it would in no way 

 effect the section's relationship to the Geological Society of America. 



The section voted in favor of affiliation with the Pacific Division of 

 the American Association for the Advancement of Science, gave its dele- 

 gates full power to act, and to sign the constitution if in their judgment 

 the rights and position of the section were fully protected. 



It was voted that, if the chairman of the section was not present to 

 represent the section at the Pacific Association's Executive Committee 

 Meeting, the temporary chairman be given the above powers to represent 

 and act for the section. 



There being no further business, the scientific program was taken up 

 and the following papers presented: 



STRUCTURE OF PIERCE COUNTY COAL FIELD OF WASHINGTON 



BY JOSEPH DANIELS 



(Abstract) 



The Pierce County coal field, the Puyer formation of Eocene age, consists 

 of a broad, abnormal anticlinorium, having a main persistent anticlinal axis 

 and a series of minor anticlinal and synclinal axes, all of which pitch to the 

 north. A known series of 12.000 to 14,000 feet is thus exposed in a chain of 

 isolated mines which develop the seams along a north-south line, thus exposing 

 the upper part of the series in the northern mines and the lower part in the 

 southern portion of the field. The flexing of the strata has been accompanied 



