It goes without saying that the desire to accomplish the task with more confidence, to avoid wasting time and labour, and to spare our experimental animals as much as possible, made us strictly observe all the precautions taken by surgeons in respect to their patients.
Bio: John E. Powers was a highly influential American copywriter. The world's first full-time copywriter,:53 he worked for the department stores Lord & Taylor and Wanamaker's before becoming a freelancer in 1886.
