Identifier: horseinstablesfi01wals (find matches)
Title: The horse, in the stables and the field: his varieties, management in health and disease, anatomy, physiology, etc
Year: 1907 (1900s)
Authors: Walsh, John Henry, 1810-1888
Subjects: Horses
Publisher: London, Routledge
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: Biodiversity Heritage Library

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
etimes by other remarkablesymptoms in the male (as in the rutting of the deer). In the former it isaccompanied in all healthy subjects by the descent of an ovum or ova intothe uterus; and in both there is a strong desire for sexual intercourse,which never takes place at other times in them (with the single exceptionof the genus Dimana). 10. The Semen retains its fructifying power for some days, if it isconkiined within the walls of the uterus or vagina, but soon ceases to befruitful if kept in any other vessel.^ Hence, although the latter part ofthe time of heat is the best for the union of the sexes, because then theovum is ready for the contact with the semen, yet if the semen reaches ^ It lias been conveyed in a suitable vessel and at the natural temperature of tlie body togreat distances, and extending over many hours without losing its fecundating properties.An nistruiiipnt known as the certes impregnator has been employed successfully, hrst inAmerica and subsequently in England.
Text Appearing After Image:
a: o < a< _io UJena:O I LU o< a: - ^ I- THEORY OF GENERATION 163 the uterus first, it will still cause a fruitful impregnation, because itremains there (or in the fallopian tubes) uninjured until the descent ofthe ovum. 11. The Influence op the Male upon the embryo is partly dependentupon the fact, that he furnishes a portion of its substance in the shape ofthe sperm-cell, but also in great measure upon the effect exerted upon thenervous system of the mother by him. Hence, the preponderance of oneor other of the parents will, in great measure, depend upon the greater orless strength of nervous system in each. No general law is known bywhich this can be measured, nor is anything known of the laws whichregulate the temperament, bodily or mental power, colour or conformationof the resulting offspring. 12. Acquired Qualities are transmitted, whether they belong to thesire or dam, and also both bodily and mental. As bad qualities are quiteas easily transmitted as go

Note About Images