| Volume 20 (1913)W. M. Wheeler. T. D. A. Cockerell. J. H. Paine and W. M. Mann. J. B. Malloch. H. F. Wickham. W. M. Wheeler. C. W. Johnson. H. B. Weiss. C. A. Frost. C. H. Richardson, Jr. C. P. Alexander. A. L. Melander. Nathan Banks. C. T. Brues. C. H. T. Townsend. T. D. A. Cockerell. C. W. Johnson. C. H. T. Townsend. M. Louise Nichols. T. D. A. Cockerell. W. M. Wheeler. J. D. Hood. F. C. Bowditch. E. P. Felt. J. H. Lovell. H. Pinkus. J. H. Paine. P. Rau. C. W. Johnson. O. A. Johannsen and C. R. Crosby. A. L. Melander. F. Knab. C. W. Johnson. C. W. Johnson. T. D. A. Cockerell. E. P. Felt. J. C. Kershaw. Wm. Barnes and J. McDunnough. C. W. Johnson. C. T. B. A. L. Melander. Front and back matter for issue 1 Front and back matter for issue 2 Front and back matter for issue 3 Front and back matter for issue 4 Front and back matter for issue 5 Front and back matter for issue 6 Index to volume 20 Table of contents metadata (XML) |