One hundred years ago the theory of evolution was new in men's minds and battles still raged between the protagonists and the antagonists. But this was not the first time that biologists had been divided. Much earlier they argued about the moral and ethical use of microscopes to aid their work. Many felt that microscopes were totally unnecessary and that there was more than enough to see with a good pair of eyes and the occasional use of the hand lens without resorting to such contraptions. Some went a stage further and insisted that God would have given us better eyes if he intended us to study the minute.