air from the polar regions. To test them more thoroughly and to gain accurate in strument measurements of their velocity and direction, the Navy has assigned two pilots the job of finding these air streams. The films, which will be focused on dials of instruments, which record the readings every five seconds, will he sent to the I'ni veristy of Chicago for study and interpre tation. The most persistent jet stream patterns cross the Southern and Mid - Atlantic States. Although the two Navy pilots will range into all sections of the country, they will concentrate on this area. Their investi gation may provide the first accurate and detailed answers to the mystery of the ghost streams of air, which move silently and mysteriously through the upper alti tudes at great speed.

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