REPORT OF NATIONAL MUSEUM, 1924 79 



rup, Denmark, and G. G. Bardarson, Akureyri, Iceland; types of 

 fossil insects from Siberia were donated by Prof. T. D. A. Cockerell, 

 Boulder, Colo. ; and various small accessions representing the Paleo- 

 zoic, Mesozoic, and Cenozoic of South America are recorded. 



An important transfer from the United States Geological Survey 

 consisted of 5,000 Tertiary and Quaternary invertebrates from the 

 Gulf Coastal Plain and the West Indies. 



Although the number of accessions to the section of paleobotany 

 is small, several are of considerable interest and value. A Devonian 

 tree stump from the Gilboa dam, Schoharie County, N. Y., received 

 through the engineering department of the New York Board of 

 Water Supply, and a fossil cycad trunk, gift of Bart Johnson, of Co- 

 manche, Tex., form excellent additions to the exhibition series, while 

 a collection of fossil plants from the Tertiary of South America, 

 gift of Dr. Harvey Bassler, Myerstown, Pa., and a small series of 

 types from the Green River, Eocene, of Colorado, described and 

 presented by Prof. T. D. A. Cockerell, add valuable material to the 

 study collections. 



The most notable accession to the division of vertebrate paleon- 

 tology in many years is the Diplodocus material from the Dinosaur 

 National Monument, Utah, collected under the direction of C. W. 

 Gilmore, curator of the division. This consists of material for a 

 nearly complete skeleton which, it is estimated, will exceed 80 feet 

 in length with a height of 14 feet at the hips. Other miscellaneous 

 material representative of the Morrison fauna was also secured. 



A second exceptionally interesting addition to the exhibition series 

 is a slab of fossil footprints from the Triassic shales of Virginia, 

 received through the courtesy of F. C. Littleton, of Aldie, Va. This 

 slab is 2 by 12 feet, weighs in the neighborhood of 1,500 pounds, 

 and shows three successive footprints of a three-toed dinosaur, with 

 a stride of 56 inches. This discovery is of additional interest in 

 being the first recorded find of such footprints in the State of 

 Virginia. 



Two composite skeletons, suitable for mounting, from the famous 

 Rancho la Brea deposits, one a saber-toothed cat, Smilodon cali- 

 fornicus, and the other the fossil wolf, Aenocyon dims, were re- 

 ceived in exchange from the University of California, and exchanges 

 with the American Museum of Natural History added to the ex- 

 hibition series a cast of the skull of the fossil rhinoceros Baluchi- 

 therium, and to the study collection a cast of the type of Griphodon 

 peruvianus. 



The greater part of a skeleton, lacking the skull, of a fossil ele- 

 phant was transferred by the United States Geological Survey. This 

 was located in Franklin County, Wash., by members of the United 



