Report of the Geology and Paleontology Committee Clarke, J. M. ; Atwood, W. W. ; Merriam, J. C. ; Berkey, C. P. ; Penrose, R. A. F. ; Day, A. L. ; Reid, H. F. ; Dean, Bashford ; van Hise, C. R. ; Dewolf, F. W. ; Walcott, C. D. ; Hotchkiss, W. O. ; Woodworth, J. B. ; Mathews, E. B. Abstract Publication: Proceedings of the National Academy of Science Pub Date: December 1917 DOI: 10.1073/pnas.3.12.721 Bibcode: 1917PNAS....3..721C