Samples, Velero IV at sunset[?], diver, launching boats, 1949-1950

"Velero IV '49-'50 cruise". Microscopic marine organisms viewed under green light then red light, Captain Allan Hancock[?], looking over rail of Velero IV (ship) toward sunset[?], three men in silhouette on aft deck with sunset[?] in the background, passing lighthouse connected to pier by strut bridge, a tall derrick is visible in the background. Scuba diver dons gear on ship and climbs down ladder into ocean, pilot steering motor boat, man transfers equipment from motor boat to row boat, row boat approaches sandy beach, view up the rocky coasline, the Velero IV can be seen anchored off shore. Men take a small boat (27 H 823) back aboard the ship then prepare to launch another small boat (27 H 870), 1949-1950. "Landing in surf, shoreline views" and "Launch motor..." -- written on dried adhesive tape accompanying film.