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๐ SIMILAR VOLUMES
## Abstract An investigation of metallic intramedullary fixation devices commonly used in orthopedic surgery revealed that the screw threaded portions of these devices were foci for corrosion and fatique fractures. After several design change proposals, a spherical head was developed which could be
On November IO, I944, a meeting was held in the Social Security Building, under the chairmanship of W. L. Batt of the War Production Board, for the purpose'of reporting to Federal agencies in Washington the results of the [7. S.-Canadian Screw Thread Mission to London at which the member representin
## &mdaru' Set-ew Thread. [Jour. Frank. In&., as flax, hemp, jute, and other of a similai nature, by enabling producers to deliver t,hese several fibre,, in a c&An, straight, long-line, marketable shape, at low cost. lJnlike cotton, which is comparat~ively a delicate plant that can only be grown p