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ACKNOWLEDGEMENTS The Tule Springs Expedition was gen­erously supported by many organizations, companies and individuals. We gratefully acknowledge their part in making possible the expedition, which was a pioneer in large scale excavating in the United States. For grants which provided funds for scien tific personnel, palynological re­search and radiocarbon dating, we express our appreciation to the National Science Foundation for Grant GS-23 to Richard Shutler, Jr., Nevada State Museum; for Grants G-21944 and GB-1959 to Paul M ar­tin, U niversity of Arizona; and for Grant GP-2330 to Paul E. Damon, U niversity of Arizona. Additional financial assistance was extended by Mr. John M cleod and the M acco Company, Paramount, California. The principal investigator, Richard Shutler, Jr., wishes to thank Mr. James W . Calhoun, Director,and the Board of Trustees of the Nevada State Museum for their initial and continuing support o f the project, includ­ing the publication of this and other reports resulting from the field work at Tule Springs. A special note of thanks is due Dr. W illard F. Libby and the Isotope Foundation for making available the fa c ilitie s of the radiocarbon laboratory on an unlimited basis. The late Herschel C. Smith was instru­mental in obtaining support from both business and labor. W e express our deep appreciation for this, and for his unflagging interest and faith in the project. Without the cooperation and assistance of the follow ing companies and personnel, the unprecedented excavating at Tule Springs would not have been p ossib le. The International Harvester Company, M elrose, Illin o is , loaned a TD~30 and a TD~25 bulldozer. Mr. W . F. H all, assistant manager of the sales construction equipment division and Mr. Harry T. Bihler, territory manager of the construction equipment division of south­ern California were most helpful. The A llis Chalmers Manufacturing Company of M ilw au­kee, W isconsin, loaned a M odel TS-360 motor scraper. Through W ells Cargo, Mr. Joe T. W ells made available a water truck, a gen­erator, drayage, and a D4-C bulldozer. Mr. W illiam Hartment of the W ells Cargo Company handled arrangements. The R. J. Reynolds Electrical and Engineering Company loaned a power auger. W e thank Mr. Roy Donton for his assistan ce. The H. C. Smith Construc­tion Company of Los Angeles provided a trail­er and other equipment and, in addition, paid insurance and union fringe benefits for the equipment operators. They also provided air transportation for visitors to the site from Los A ngeles. Thanks also go to the Inter­national Union of Operating Engineers Local 12, Las Vegas, to Mr. J. J. Twombley, President and Assistant Business Manager of the Union, and to Mr. Glenn Vawter and Mr. Phil A. Judd, Jr., district representatives. Equipment supervisor Mr. Bud Dunnegan and equipment operators M r.N e w e ll Bunny, Mr. Virgil Keever, Mr. Lee Laub, and Mr. W illiam Sampson also merit many thanks for the ex ­cellen t jobs they did. Fuel and lubricants necessary for main­taining and operating the heavy equipment were donated by the Union Oil Company of California, through Mr. C. S. Palmer, sales manager for southern Nevada. Pafford and Associates of Los Angeles provided the reference grid for the control of the excavation operations, aerial photographs and a detailed contour map. Many individuals volunteered their time for field work. W e are indebted to the follow ing for their assistance: Philip Jenny, who spent four and one-half months in the field , Sheilagh Brooks, Andy Kastell, Mr. and M rs. Kingman, George Kritzman, June M athis, Elaine Newton, Lau-rette N oble, A1 Wiseman and Jerry Wheat. Mr. Carl von Badinski and Mr. Tom King made a thorough archaeological surface sur­vey and did the base line mapping of the area. Our thanks to them and to Mr. W . V. Badinski, Mr. J. L. Bromberg, Mr. R. Culp, M r. C. W . Frank, Mr. P. E. Hadley, M r. R. Hansen, Mr. N. V. Karstens, Mr. D. C. Larson, Mr. J. Lestor, M iss Frieda M aser, Mr. W . H. N ew ­man, Mr. W . Reinemann, Mr. H. S. Seapy, Mr. J. J. Smith and Mr. R. J. W illiam s, all of whom helped with the base line mapping. The Clark County Commissioners con­structed and maintained a road from the Tule Springs Ranch to the field camp. Mr. N ew ell B. Morgan and Dr. Charles G. Hansen of the Bureau of Fisheries and W ild life provided a 7