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20 U. S. GOVERNMENT FILMS the workpiece on the milling machine table; bore with an offset boring head; and use plug gages and a micrometer to check the center distance between the holes. Supplementary filmstrip, same title, also available. (OE 209; 28 minutes) 32, 41 Boring to Close Tolerances U.S. Office of Education, 1944. (Machine Shop Work Series. Operations on the Engine Lathe No. 11) How to mount and adjust the brass valve bonnet in a ring fixture; rough and finish-face the hub; rough and finish-bore the hole to close tolerances; prevent bellmouth when boring a hole; use a plug gage; and set inside calipers for close measurement. Supplementary filmstrip, same title, also available. Portuguese version, "Perfur- acao Micrometrica" and Spanish version, "Perforacion Micrometrica," also avail- able (OE 59; 17 minutes) 32, 41 Bougainville U.S. Department of the Army, 1948. (Historical Reports Series) Landing oper- ation and subsequent capture of Bougain- ville in 1943 by American Forces, the 37th Division, 14th Corps, and 3rd Marine Division. (HR-A-5; 9 minutes) 12, 32, 41 The Bounteous Earth U.S. Coordinator of Inter-American Af- fairs, 1941. (Mexican Fiestas Series No. 2) Two fiestas closely related to the agricultural life of the Mexicans: bless- ing of the animals on Candlemas Day in Cholula; harvest dances in Tehuantepec. (9 minutes, color) 32, 41 The Bowline U.S. Coast Guard, 1943. How to bend a bowline. (4 minutes) 41 Brake Adjustment: Hayes and Good- year Brakes U.S. Department of the Air Force, 1942. (Airplane Hydraulic Brakes Series) Need for brake adjustment; adjustment of bearings and shoes with double and single Hayes shoe brake and adjustment of expander tube; adjustment and final testing of Goodyear disc type brake. (TF 1-307; 17 minutes) 7 Brazil U.S. Coordinator of Inter-American Af- fairs, 1943. (South American Medley Series No. 4) Views of Rio de Janeiro, Sao Paulo, and Santos, Brazil's coffee center; Brazil's natural resources. (10 minutes, color) 32, 41 Brazil Gets the News U.S. Coordinator of Inter-American Af- fairs with the cooperation of the Brazil Tourist Information Bureau, 1942. Pub- lication of a Sao Paulo newspaper from the receipt of a dispatch to the sale of the paper on the street. (10 minutes) 32, 41 Brazilian Quartz Goes to War U.S. Coordinator of Inter-American Af- fairs, 1943. Mining of quartz; its func- tion in the manufacture of radio equip- ment. (10 minutes) 32, 41 Brazil's Fishing School U.S. Coordinator of Inter-American Af- fairs, 1943. Story of Marambaia Fishing School, on Bay of Ilha Grande, which trains Brazilian boys in fishing arts: building and handling small boats; mak- ing and repairing nets. (75 minutes) 32, 41 Brazing Carbide Tools U.S. Office of Education, 1945. (Machine Shop Work Series. Carbide Cutting Tools No. 1) How to braze carbide tools with silver solder; make a sandwich braze; and braze by other methods. Supplemen- tary filmstrip, same title, also available. (OE 241; 18 minutes) 32, 41 Brazing Flanges with Silver Solder U.S. Office of Education, 1944. (Ship- building Skills Series. Coppersmithing No. 3) How tubing and silver brazing flanges are fitted; flux applied; heat