ELEMENTS OF HUMAN PHYSIOLOGY. By Miriam Scott Lucas. Philadelphia, Lea & Febiger, 2d edition, 1950. 357 pp. $4.75. The second edition of this college text of human physiology shows very little change from the first edition. Despite the statement in the preface that the section on the nervous system is completely rewritten, there seems to have been no rewriting at all of this section, but merely...