GO series beginning in April. Batzel further discusses the fact that ex- periments which could have been done before April cannot now be executed because of the lack of suitable sites, particularly high yield sites. And requests that in the future decisions with respect to construction timing in the various tunnels should be coordinated with his laboratory and requests that an NTS planning board meeting be held before there is any action taken with respect to the reassignment of mining crews. On 20 Dec. Gen. Betts sent a memorandum to the Chairman and the Commissioners of the AEC documenting the authorizations which DMA had provided within the last few days concerning the resumption of atmospheric testing. The decisions were required immediately to meet the April 1 schedule date since the holiday was fast approaching and Gen. Betts, among other things, authorized H&N to do certain hiring and initiate procurement of construction equipment, materials and supplies, authorized 3.5 million dollars of a $5 million authorization to H§N for the work to be performed prior to June 30 and presented H&N with the cover story as to the purpose of the work that they were performing in the Pacific area. The memo further States "Arrangements have been made to identify and contact past employees to determine if they are available to meet the predicted early needs." A 22 Dec. Memo from Col. Banks of DMA to a Mr. Holland of the Fallout Studies Branch of the Div. of Biology and Medicine in the AEC covers some of the details of the planned atmospheric test operation which "may be useful to you in your planning investigations of various fallout phenomena.'' other things, Col. Banks notes that there are a total of Among detonations scheduled between April 1 and June 15 and that of the » about are currently planned as airdrops, 2 are high altitude shots and 2 are surface shots. He notes the range of yields of various shots and that the airdrops are to be conducted 400 miles south of Oahu with shots scheduled about uniformly throughout the test period. The 2 high altitude shots he notes are to be 1 at with a yield of — and the other at 400 kilometers with a yield of .. and are scheduled to be performed between May 15 and June 15 from Johnston Island. The two surface shots which he notes are to be a 165-kt shot at Jarvis Island and a 2 kt shot at the NTS. Further, for the assistance of Mr. Holland, he states that Bob Goeckermann of LRL and George Cowan of LASL had been contacted relative to attending a meeting to discuss fallout phenomena. A 34 A 27 Dec. TWX from Bradbury to Betts mentions the planned surface shot of an XW-50 X1Y2 to measure the neutron flux distribution and it is presently planned to be done as a surface shot on Jarvis Island. Bradbury requests that Betts arrange the procurement of Jarvis for that purpose and notify the lab of the Island's availability by the first of the year. A 27 Dec. memorandum for Gen. Betts and Dr. Gerald Johnson, the DOD Assistant to the Secretary of Defense for Atomic Energy, covers the arrangements regarding the use of Christmas Island and is written by a Mr. Phillip J. Farley, a Special Assistant to the Secretary of State for Atomic Energy and Outer Space. The cover letter notes that a tentative agreement with the United