Processes Contributing to Development of Cleavage

Abstract

An analysis of possible processes is offered that attempts two properties, (a) it is exhaustive (b) the processes üsted are nonoverlapping. The intention is not to change present usage, but to emphasize successful terms or practices (that quickly and accurately transfer an idea from writer to reader) and to guard against trouble-some terms or practices (that seem likely to cloud the quick, accurate transfer of ideas). At the outset it is important to separate geo-metrical processes from material processes. For example, geometrical processes include change of shape and change of size. By contrast, material processes include diffusion of atoms through a crystal lattice and transport of atoms as solutes by a moving solvent. The plan will be to list geometrical processes first and material processes later.