vi local force to maintain and operate periodically all utilities and plant; warehouse all supplies; provide accommodations for a limited number of guests; clean up areas after experiments amd reconstruct once the four shot towers, repave shot areas once with asphalt; rebuild shot island camps and utilities as necessary once; and finally salvage such material as warrants Savinge This program contemplates that other agencies will, without cost, fur- nish all ocean transportation for their own supplies amd personnel; provide crews for local air flights; supply all outside communications; station guards; and that military forces will provide their own support and mainte-= nance, except for operation of utilities. Through all of these estimates, no allowance has been made for costs of any kind which will be incurred by the Laboratory, either in connection with superivision of the work or for pure chase or installation of experimental equipment. Costs of military support are not included and in addition, we have assumed that military agencies will furnish on memorandum receipt all necessary small craft, vehicles and air~ planes including the crews for operation of aircraft. BASIS OF ESTIMATES: General, Estimates have been prepared using as an origin current labor, material and equipment costs on the West Coast. These costs have been modi- fied by our experience on foreign work and also as a result of conferences with Naval officers at Pearl Harbor who have had experience in this area. At the present time, we have no specific data in a form that can be used as a guide of the cost of previous work of similar nature on Eniwetok or adjacent Atolls. It is our understanding that military transportation may be available without charge for both personnel and material. Our past experience indicctes that such transportation cannot be considered 100 percent reliable through the course of the entire project because demands with higher priority may divert -2