Regatta at Valleyfield: MS of woman operating machine in Valleyfield, Quebec cotton mill. LS of water-tower, PAN to MS of workers (men and women) leaving factory. HAMS of workers (men and women) walking away from camera. MS of officials saluting, PAN to MCS of man raising flag. LACS of Royal Canadian Mounted Police officer and regatta official saluting. Shots of officials in charge of timer and starting flag getting ready to clock speed races. CSs of official waving checkered flag as hydrofoil boat speeds by. Shot of official timers at their posts along table on waterfront. LACS of woman looking through binoculars. FOLLOW SHOTs of hydrofoil boats in race. MSs of couples in evening dress dancing on ballroom floor.