National Geographic : 1944 Apr
Putnik from Ethel Chamberlain Porter As Drums Beat and Pipes Trill, Boys and Girls Clasp Hands, Form a Circle, and Dance the Kolo toExhaustion Slowly now the kolo begins. Soon skirts and braids will fly with the centrifugal force of crack-the-whip. An Albanian band provides themusic. Dancers areSouth Serbians, all candidates for marriage. The afternoon-long whirl measures prospective brides' stamina, their most important qualification forfarm life.