600 TAKEN IN RAIDS ON COAST

SAN FRANCISCO, Feb. 23. -- (AP) -- Mass raids that reached into cities and hamlets in four Pacific Coast states yielded approximately 600 Japanese, German and Italian nationals over the week-end to climax a series of blows regarded as delivering a sharp setback to enemy hopes of concerted fifth-column activity in this combat zone.

California's attorney-general, Earl Warren, disclosed that investigating officers have found cases where Japanese are using citizenship of their American-born children to control land completely surrounding vital aircraft plants, and cases where Japanese purportedly made a living by farming ground in the vicinity of military areas -- ground he said obviously could not produce sufficient crops for a livelihood.

The F.B.I. agents and their supporting army of state and local officers have pounced on aliens and contraband in the vicinity of such strategic areas as the Mare Island Navy Yard at Vallejo, the Mather Field Air Training Base near Sacramento, the Army Air Corps and blimp base at Sunnyvale, Calif., and the Terminal Island naval and shipbuilding area in Los Angeles Harbor.