[Vv CHAPTER SECTIONS 16-17 YOL. II BOOK 5 SECTION 16. PROGRAM 4 PROJECT 4.1. The services of two riggers were required for eight days to help install samples at the Station 411 series on the reef from Site Clara to Site Flora. The riggers remained with Project 4.1 and continued to install equipment and secure stations until M ~1 Day. Lumber was furnished and cut to dimensions specified by the User for the construction of thermal shields on these 47 reef stations. After M-Day, four riggers were furnished to aid in the recovery of samples from the Station 411 reef series. On the Site Yvonne reef, two riggers were furnished for four man days to help install samples at the Station 412 series. Here, too, the installing of equipment and securing of stations, with Holmes & Narver-supplied assistance, continued until M -1 Day. Miscellaneous support was rendered Project 4.1 in post-shot recovery services. An LCM with crew was provided for the transportation to Site Fred of samples recovered from the shot area, This recovery from the Stations 411 and 412 series continued well into January of 1953. Holmes & Narver also furnished six cubic feet of roofing asphalt, which was melted and poured near Bldg. 212c on Site Elmer for the purpose of potting equipment. Total Holmes & Narver man hours applied, 817. PROJECT 4.4, Labor and equipment were provided to place instrumentation at Stations 440 and 441. each station. A 4-man floorless tent was furnished and erected over Immediately prior to M-Day, 400 filled sandbags were supplied by Holmes & Narver, 250 being delivered to Station 440 and 150 to Station 441. These were placed by the User to protect the stations. Following K-Day, a bull- dozer and operator were provided Project 4.4. 4.4 totaled 201. SECTION 17. Man hours furnished to Project PROGRAM 5 PROJECT 5.1. One hundred bags of sand were furnished Project 5.1 in connection with the installation of instruments in the Station 510 series. The User specifically requested screened fine sand, free of cement particles. A mound of earth was removed because it obstructed the field of view of Stations 57, 58, 59 and 60 of the Station 510 series on Site Janet. Man hours expended by Holmes & Narver in services to Project 5.1 were 71.5. , PROJECT 5.2. Labor and equipment were furnished this project on M -2 Day to complete preparations of Station 520 at Site Clara. At 1400 hours on M 2 Day the outside portion of the dehumidifier unit was removed and the pipes leading into the station were sealed. At 1500 hours, the Holmes & Narver crew sandbagged the door of the station, Follo-ving M-Day, four laborers 5-17