ET H IC S is that division of moral philosophy which is concerned with the study of moral principles and human conduct. Ethics assists in determining the right­ ness or wrongness of an act bu t it is confronted w ith age old customs which define that which is morally right and punish an infraction of it. As man’s status improves through education, religion, and those relationships aris­ ing from contact w ith his fellow beings, his concept of that which is right or wrong changes. And so it is today that some of the practices of yesterday which were then acceptable to society, are now beyond its pale. We do not find it difficult to determine in the abstract that which is right or that which is wrong. O ur difficulty arises from the application of ethical principles to concrete cases of our own conduct. Even to the mentally immature it should be obvious that the progress of civilization has been founded upon knowledge, skill and m utual welfare rather than upon self interest.