data on these counts as well as considerable medical equipmentwere lost in the Pacific Ocean when the cargo hadto bejettisoned from a plane which developed engine trouble. A return trip to Rongelap Island was made two monthslater (May 1958), and about 100 Rongelap people were again | countedin the steel room. Details of the procedures used and theresults will be described below. FINDINGS Living Conditions During the past year the Rongelap inhabitants have become well adjusted to life in their new village, which was completely rebuilt, with well constructed housesfar superior to the old ones. Aninteresting sidelight is that some of the peopie, particularly the older ones, prefer to live beneath their houses, probably because it is cooler and they prefer not to climb thesteps. During the 8 months since the people returned, copra production was beingsatisfactorily re-established, but it had not reached full capacity. The establishmentof an agricultural program was proceeding disappointingly slowly. At this writing it is understood that the Trust Territory is sending a full-time agriculturist to implementthis program. Adequate wateris available on Rongelap from the concrete water catchmentcisterns from the roofs of nearly ail the houses. Flies are quite prevalent. Mostof the people still cook outdoors rather than in the screened cook-houses built for them. Scraps of food around the cooking area probably predispose toward flies. The screened-in latrines are a big improvement, andit is hoped that the children will make greater use of them. This point has been emphasized to the people in order that intestinal parasites may be better controlled. The island is heavily infested with rats and somesort of extermination program is indicated. The diet is extremely limited in variety, although caloric intake appears to be adequate. The chief source of carbohydrateis rice and a small amountofflour. Protein is derived largely from fish with an occasional supplement of canned meat. Thefat intake is mostly from coconut meat. Vitamins are obtained mainly from coconuts, pandanus(whenavailable), and fish. In view of the importanceofdiet in relation to certain puzzling clinical laboratory findings, the following more detailed information is presented. Fish is the main source ofprotein. It is eaten fresh, dried, or salted, several times weekly and frequently daily. A great deal moreis eaten fresh than otherwise. The liver is included. Among canned meats, corned beefis well liked as well as salmon and sardines. About one can (perhaps two) is eaten weekly per person. Other meats include pigs and chickens which run loose on the island and are eaten on rare occasions. Clams (particularly the giant clams) are eaten when they can be found; however, they are notplentiful now. Landcrabs are considered a delicacy, but eating them is forbidden at this time becauseof their high Sr®level. (This is the only forbidden dietary item.) Local plant products. Coconuts are an important item of the diet, eaten green or ripe. About three green coconuts per day are consumedper person, both milk and meat. Ripe coconutis eaten with meals either as such or grated onto rice and fish. Pandanusis available during the summerandfall. Thefruit is eaten raw by sucking the sweet juice from the fibrous segments. The juice is also squeezed out and usedto flavor arrow root flour and to make a candy knownas “jenkum:” This fruit is probably a major source of vitamin A and possibly C. Arrowrootis grated to form a starchy flour, which is cooked into a mushy, tapioca-like material. It is available principally in the winter months. Breedfrvuit, a starchy fruit, is not abundant on Rongelap butis eaten when available. Rice, salt, sugor, flour, tea, and canned meats are im- ported. Rice is a mainstay eaten three times a day. Sugar is used to sweeten tea. A little sait is used in cooking rice and bread, butis usually in short supply andis rarely used on prepared food. Bread and pancakes are frequently eaten. Interval Medical History The general health of the Rongelapese has been good during this past year. Six children (4 exposed and 2 unexposed) presumably hadinfectious hepatitis during November and December1957. No other major epidemics or diseases were reported. Abdominal pain and diarrhea were among the commonest complaints, and were probabiy associated with the eating of food kept several days withoutrefrigeration. The large numberofflies may also piay a part in the prevalenceofthis condition. A complaint of night blindness of several months duration among 10 children and | adult was investigated and is reported below. Common colds, fungus infections of the skin, and impetigo

Select target paragraph3