stemmed from the demands imposed on the armed services by the Korean ‘war. As the war situation became acute, greater logistic support was required of MSTS by all military services. This resulted in withdrawal of ships from the normal trans-Pacific schedule, repeated cancellations or delays in sailings and imposition of shipping priorities. All of these measures seriously impaired the scheduled rate of shipment of cargo to Eniwetok. The period during which shipping difficulties became most acute was the summer of 1950 when procurement of material and prefabricated installations for the Military Structures Program and for the Scientific Structures Program had generated a particularly heavy shipping volume of critical items urgently needed by the Jobsite. Con- struction progress on these structures could not be delayed if campletion was to be effected by the scheduled date. A review of changes in cargo ship sailing schedules which took place at this time is of interest. The schedule with revisions for July and August 1950, follows: Type Original Schedule Revised Schedule Arrival Date Yancey Cargo 10 June 17 June 1 July Thuban Cargo 25 June Cancelled Warrick Cargo 25 June 29 June Achenor Cargo 20 July Cancelled (Trnamed) Cargo 27 July Cancelled Unnamed) Cargo 10 August Cancelled Albert M, Cole Cargo 15 August Cancelled Cargo 19 August Ship Merril l4 July 6 Sept. a On July 20, 1950, a verbal statement was received from Los Alamos thet all MSTS ships were tied up in the Far East and that nothing would be available for JIF.3, including Holmes & Narver, until August 15, but that a cargo ship would be obtained earlier if possible, This parti- cular series of changes in schedule resulted in a gap of fifty-four days cetween successive arrivals of cargo ships, and the uncertainty of cargo movement under these circumstances created a situation which appeared to threaten the planned completion of the entire program. Therefore, an investigation was made as to the availability of commercial charter stips which might be utilized as an emergency means of logistic support. Tt was found that a British, Norwegian, or Panamanian ship could be obtained with owner's guarantee of availability of 9,000 long tons dead weight and 12,000 measurement tons cargo capacity from San Francisco or Les Angeles to Eniwetok at about $77,000, with all stevedoring snd cargo handling to be performed by the charterer, It was ascertained 14-8