Our Jewess uses her emotions for effect, which means that she has become theatrical. Though there is reality in her emotional display, time and the advantages she has gained have brought enough finish and restraint to her manifestations to gain the designation artistic. True, it is a crude artistry, for intelligence does not sufficiently guide it, and her art is used sometimes indiscriminately and inopportunely. As she grows older the value of her tears is less, and she is becoming that prime nuisance, the elderly scold. Among the emotional types well recognized by the neurologist is that known as the cyclothymic. In the individuals of this group there is a periodicity to mood (rather than to emotions). There is a definitely pathological trend to the cyclothymic, and in its most marked form one sees the recurring depressions and excitement of Manic Depressive Insanity. Aside from these pathological forms, there are persons who show curious periodic changes in mood. They become depressed for no especial reason, are "blue" for day after day and then quickly return to their normal. Sometimes these blue spells alternate with periods of exaltation and happiness, but in my experience this is far less common than periodic blue spells, a kind of recurrent anhedonia. L. D. is ordinarily what is known as a vivacious person. Bright, talkative, keen in her discriminations, she has all her life been at the mercy of strange alterations in mood, alterations which come and go without what seems to others adequate reason. As a child L. D. was sick a great deal. She showed an unusual susceptibility to infection, and it was not until she was nine years of age that she attended school regularly. Her illnesses made it impossible to discipline her, and so she has always been a bit "spoiled," though her kind and generous nature makes her a charming person. But more important than the fact that she could not be disciplined is the lowering of energy that these sicknesses produced, a lowering marked mainly by a liability to fatigue and depression. Let there come a sickness, and this woman's stock of hopeful mood goes and there results a loss of interest in life, a loss of zest and joyousness. A digression,--and a return to the theme of the first chapter of this book. The dependence of the mental life on bodily structure, equally true in the both sexes, is exquisitely demonstrated in woman. In many women there occurs an extraordinary increase of sex desire just before the menstrual period and in some to the point where it causes great internal conflict. Others show moderate depression and even confusion at this time, and to the majority of women some mood and thought change is taken for granted. At the menopause mental difficulties to the point of insanity are witnessed, and in some cases the change is permanent. Back of mood is the entire organic life of the organism, and back of the nature of our thoughts and deeds is mood.