for the essential phenomenon is not that there has merely been a change, but that something has been changed into the likeness of something else. The book was intended as a listing of the kinds of naturally occurring variation that could act as a substrate for the evolutionary process and Bateson took his examples from collections, both private and in museums, of materials displaying morphological oddities. Interestingly the person who also coined the term ¿Genetics¿ proffered little in the way of speculation on the possible genetic underpinnings of these oddities. It wasn¿t until the early part of the next century that these changes in meristic series were shown to be heritable.