“In all tests of strength and cleverness,” says Havelock Ellis, “the woman’s degree of strength and exactitude is related to the level of her monthly curve. Moreover, in every criminal procedure, the relation between the time of occurrence of the alleged crime and the accused’s monthly cycle should invariably be taken into consideration.” The results obtained by Helen Bradford Thompson by experimental research in her “Comparative Psychology of the Sexes” (Würzburg, 1905) agree in general with the details we have already given as the result of earlier researches. In her experiment also “man proved better developed in respect of motor capacity and accuracy of judgment. Woman had, indeed, sharper senses and a better memory. The opinion, however, that emotional excitement plays a greater part in the life of woman has not been confirmed. On the contrary, woman’s greater tendency towards religion and towards superstition is a proof of her conservative nature, of her function to guard established beliefs and modes of action.” Thus we cannot expel from the world the fact that man and woman are eminently =different= alike physically and mentally. Whether, as Alfons Bilharz declares, they are really throughout equivalent opposites, or, as he expresses the comparison, like +1 and -1, their sum is equivalent to nil, must remain at present undetermined. But that ineradicable differences exist is certain. There is no question here of an inferiority to man. What woman lacks on one side she has more of on another. She is through and through a creature =constructed on other lines=, standing nearer to Nature than man, and for this reason, like Nature, =problematical=, the great guardian of the secrets of Nature (Bärenbach). “Who shall explain the wonderful Magic power of woman?” says Platen, thus touching an aspect of ancient German sentiment, which has also found expression in the _sanctum aut providum_ of Tacitus. Ovid, Byron, Börne, and Rousseau, have also described the wonderful and mysterious influence of woman’s nature, fundamentally different from that of man. Most beautifully has it been described by Theodor Mundt in the following magnificent passage of his book on Charlotte Stieglitz: