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•INTRODUCTION. 



The preparation of tliis Bihlioftraphy was first undertaken by 

 Charles W. Henderson while a student from Oregon at Stanford 

 University in 1910. Rcahzing that such a paper should be pub- 

 lished from an Oregon source, he sent his manuscript to the Uni- 

 versity of Oregon with permission to complete it and to publish it 

 as a bulletin. Before the manuscript was received, however, J. B. 

 Winstanley, a former student of the University of Oregon, had, at 

 my suggestion, begun the preparation of a similar work, which he 

 has kindly submitted to me. In this bulletin the references con- 

 tained in the Henderson manuscript are numbered serially, while 

 the additions, most of which are contributed by Mr. Winstanley, 

 are inserted and designated by the letters a, b, c, and so on. While 

 the great number of such insertions shows that it would be a mis- 

 take to claim completeness for any paper of this kind, it is thought 

 that all the more important Geological articles relating to Oregon 

 have been listed. A great many Geologic notes published in the 

 various newspapers of the State have not been examined by either 

 of the authors. The subject index prepared by Graham J. Michael, 

 of the class of 1912, of the University of Oregon, will be convenient for 

 all those who use this bibliography. It is not arranged very sys- 

 tematically, but the segregation of the references to Economic 

 Geology, Paleontology, Geography and the various counties of the 

 State will give it a value to students of Geology. Some of the titles 

 given are to works that are not accessible to the average person and 

 a few of them are not to be found in the large libraries. The 

 publications of the United States Geological Survey and of other 

 government bureaus can be obtained on application to the depart- 

 ments issuing them or, if the supply is exhausted, application should 

 be made to the Superintendent of Documents, Washington, D. C. 

 Many of the publications referred to are to be found in the large 

 libraries of the State. 



ARTHUR J. COLLIER. 

 University of Oregon, Department of 

 Geology, December, 1912. 



