JESSIE; PHKLPS 293 



Since the evolutionary way of presentation is the most natural, 

 and, in fact, the only one which will enforce the idea of unity, 

 we take up our series of animals and plants according to this 

 order. Hereby we are able to insist, by our very method of 

 procedure, upon both the laws of heredity and the potent influ- 

 ence of environment. Through all this introductory work the 

 emphasis is kept upon the reproductive functions of the forms 

 presented; and the problems of the origin of reproduction and 

 of sex are, of course, raised. 



By the time we reach the climax of the subject human repro- 

 duction three things have been accomplished. First, a biological 

 setting or background has been made ; second, a vocabulary has 

 been established; and, third, the student's mind has been pre- 

 pared to deal with this particular topic in a scientific, that is, a 

 common-sense manner. The establishment of a working vocabu- 

 lary is of no small account. I am more and more assured that 

 it saves much embarrassment, as well as confusion of ideas, and 

 strips the subject of the vulgarity which ordinarily clothes it. 



Among the higher forms, introductory to the human subject, 

 we study the anatomy and embryology of the rabbit and bird, 

 teaching with considerable detail the arrangement, origin, and 

 function of the Mai membranes and blood vessels, thus getting 

 excellent material for comparative work later. Demonstrations 

 are given throughout the course to illustrate every topic for 

 which we can get material, and these are always supplemented 

 by lantern slides, charts, and much reference reading. In con- 

 nection with the mammialian work, small pregnant mammals, 

 such as the rat and rabbit, and pregnant pig uteri are used ; and 

 one-to-four-day incubator chick embryos are shown in connec- 

 tion with the work on birds. No text is used. 



In dealing with the human subject we pursue the same order 

 of procedure, presenting first, by means of the manikin and 

 charts, the anatomical features of both sexes, and then the phys- 

 iological phases of the subject, including under this last, men- 

 struation, fertilization, embryological development and birth. Dr. 

 Jeanne Solis, of Ann Arbor, our near-by university town, has 

 come each year to give a special lecture to the class on the sub- 

 ject of the hygiene of menstruation. The presence of a phy- 

 sician, I feel, gives added weight and sanction to the hygienic 

 laws which have been presented. 



Following the work on human physiology and hygiene there 

 comes the necessary consideration of some of the pathological 

 aspects of the subject. Such topics as masturbation, prostitution, 

 and venereal diseases are handled frankly, but briefly since we 

 wish to emphasize only the normal and the physiological. These 



