VICHY--Jugoslavia's small but comparatively modern fleet has escaped from its base on the Adriatic Dalmatian coast and joined the British fleet operating from Greek ports, according to dispatches reaching Jugoslav quarters in Vichy tonight.

Jugoslav quarters said that, insofar as could be learned, the fleet has suffered no serious losses in the five days of German blitzkrieg and was able to move southward to join the British behind the screen of the Dalmatia Islands.