Das Buch der Natur - mit Informationen für junge Menschen, die daran denken, zu heiraten - über die Philosophie der Fortpflanzung und des Geschlechtsverkehrs, das zeigt, wie man Empfängnis verhindert und vermeidet (14802116173)

Identifier: bookofnaturecont00asht (find matches)
Title: The book of nature : containing information for young people who think of getting married : on the philosophy of procreation and sexual intercourse, showing how to prevent conception and to avoid child-bearing : also, rules for management during labor and child-birth
Year: 1861 (1860s)
Authors: Ashton, James History of Medicine Collections (Duke University) NcD
Subjects: Contraception Sex Manuals
Publisher: New York : Wallis & Ashton
Contributing Library: Duke University Libraries
Digitizing Sponsor: Duke University Libraries

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te that one of these globules, whichare not visible to the naked eye, but can be seen only witha microscope, contains thirty of them. After the globulesbreak open, the Zoospermes grow and become developedbefore they are in a fit state to enter the female Ovum.Attached to their head is a sort of sucker which fastensitself on to anything it can take hold of. By the aid ofthe microscope we are enabled to study the habits of theseanimalculse so closely that it is known they cast their skinsas they grow larger, like some insects. A French physi-ologist writes that he easily distinguishes their sex, maleand female, but we doubt the truth of his assertion. Theyare apparently very playful and active, but it appears to betheir nature to move only in one direction, and that straightforward—which movement has a connection with impreg-nation that is explained elsewhere in these pages. Inwatching the motions of these curious little creatures, wefind that combats frequently occur among them. They
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