An 18th-century French ebook called The art of boys prompt an Serious means of making certain youngsters of one sexual intercourse. The writer indicates that a single testicle and 1 ovary are supposed for each intercourse. By eradicating a testicle or ovary, young children of another sex can be confirmed.[58] https://eduardoelsyg.ka-blogs.com/85168046/the-gender-selection-diaries