How the Sex of Offspring is Determined, and how Controlled or
Produced at Will. The Biological Viewpoint. The Practical
Viewpoint. The Chromosome Theory. Artificial Influencing of Sex
in Offspring. Professor Doncaster's Reports. Dawson's Theory.
Are there alternate male and female ova? The Effect of Nutrition
in Sex-Determination. Schenk's Theory and Methods. Influencing
the Ovum. Male and Female Elements. Yung's Experiments in
Sex-Determination, and their Startling Results. Changing Sex in
Tadpoles at will. How the Bees determine the sex of their larva.
Experiments upon Butterflies. Why more Boys than Girls are born
after Great Wars. Other Theories of Sex Determination, and the
Methods of Application. The Consensus of the best scientific
thought on the subject 115