Scientists experiment with insecticides on flies at laboratory in Sunbury-on-Thames, Surrey.
Fly Farm at Sunbury-on-Thames, Surrey.
C/U Girl taking piece of cotton wool. M/S Selecting bugs from wool. C/U Selecting bugs from wool and putting into water. C/U Tweezers picking out bugs. C/U Putting bugs in water. M/S Man putting bugs in bran into jars. M/S Man blowing through pipe. C/U Stretching muslin over top of jar. M/S Girl hands man jar, takes off muslin and pours contents into a bigger tin. C/U Man pours mixture from sieve into jar and then starts to blow husks away.
C/U Blowing husks. M/S Changing jars and girl covers jar top. M/S Girl puts jar on shelf and selects another. C/U Girl emptying jar into glass case. C/U Flies escaping from jar into sealed case. C/U Man turning on gas. C/U Flies in case against glass. C/U Man sucks fluid through pipette and drops it in to glass case. M/S They sit down to wait for demise of flies. C/U Flies against glass. C/U Man and girl talking. C/U Girl writing down data. C/U Flies dying on floor.