PART V - SUMMARY OF OPERATIONS (CONT) Public Health defined a symptom which would make the case an emergency -- the symptom appeared. USADO Ecuador advised that competent medical per- sonnel were stationed in the Galapagos. AMVER provided data on two ships suitable to our purpose within thirteen minutes after a request for a HI-LO surplice of east-bound ships had been transmitted. The latter alterna- tive was selected because it offered the least diversion from the mission. Attempts to raise the ships on radio were unsuccessful for about twenty hours and then contact was made with the British freighter SS SOMERSET, Captain Weston commanding. Captain Weston was extremely cooperative and at 1700 GMT on 13 September he diverted his ship to rendezvous with ROCKA- WAY at 1200 GMT on 14 September. The rendezvous was made at the appointed time and position and LTJG BRADY was transferred by small boat for trans- portation to Balboa. The ROCKAWAY then turned south to resume her oceano- graphic survey at the location where it had previously been halted. f. Meteorology. (1) A meteorology program was carried out in accordance with the specifications laid down by the Weather Bureau. Two weather observers were assigned for this work and the program was under the supervision of the senior observer, Mr. Frank Perry. Three AG's from the ROCKAWAY's crew were assigned to participate full time in this program. Although every effort was made to facilitate the weather observations, in cases of direct conflict with the oceanographic program the latter was given precedence. For example, if the ship was stopped with a hydrocast down we would not get underway to achieve an optimum balloon run. Similarly, if underway between oceanographic stations the ship would deviate from course for balloon release but would not divert to achieve an optimum run. As a measure of the effect this operational constriction had on the weather program, it may be stated that out of 138 balloon releases, 32 could not be tracked by radar. At least half of these could have been tracked if the vessel could have been manoeuvred so as to assist the radar in acquiring and holding the target. g. Oceanography. (1) Introduction. (a) In accordance with COMEASTAFEA Sailing Orders and the Man- ual for EASTROPAC Observations, a survey of the Eastern Tropical Pacific Ocean was conducted by CGC ROCKAWAY from 1 August to 23 September 1967, concurrently with similar surveys being made by the UNDAUNTED, operated by the Bureau of Commercial Fisheries, and the THOMAS WASHINGTON, opera- ted by the Scripps Institution of Oceanography. ROCKAWAY's basic sur- vey involved operations on three types of oceanographic stations, termed A, B, and C stations, along tracklines off the coast of South and Central America extending as far as 15° South Latitude and 95° West Longitude. (For a detailed summary of observations at each station see Enclosure 1). Observations at A stations, occupied twice daily at noon and midnight, included 1000 meter STD and hydrocasts, Laxan casts (for productivity and pigment determinations), oblique, surface, and micronetton tows, and night life dip-netting at midnight stations for collection of physical, chemical, and biological data. Subsequent analyses included quantitative chemical determinations of oxygen, salinity, nitrates, nitrites, silicates,