The threshing demonstration at the Saskatoon show depicts all the stages of threshing. Here is the little machine that freed mankind from the thousands of years of drudgery by threshing by the flail. The date of the appearance of the spiked cylinder can be put at approximately 1825. Around 1837 Pitts and others added a straw shaker rack and a fan and the modern grain separator, if it can be called modern any longer, was born. This is the only one of many old time demonstrations to be seen at the Saskatoon show the first week in July 1962.