zoosperms

A German physician some time since advanced the theory that the two testicles and ovaries produce elements of different sexual character, the right testicle forming zoosperms capable of producing only males, and the right ovary producing ova with the same peculiarity.

Plain Facts for Old and Young John Harvey Kellogg 1897

As all the exquisite details of the most beautiful flower are in essence contained within the tiny bud which first makes its appearance, so is the developed human being, the full-grown man or woman, virtually contained within the tiny cell called the ovum after it has been impregnated or fecundated by the zoosperms.

Plain Facts for Old and Young John Harvey Kellogg 1897

Some claim that the zoosperms are matured in these organs.

Plain Facts for Old and Young John Harvey Kellogg 1897

At the same time, the testicles of the male fish, which are contained within the abdominal cavity, become distended with developed zoosperms.

Plain Facts for Old and Young John Harvey Kellogg 1897

-- The zoosperms not only come in contact with the ovum, but penetrate the thin membrane which incloses its contents, and enter its interior, where they disappear, becoming united with its substance.

Plain Facts for Old and Young John Harvey Kellogg 1897

When the female seeks a place to deposit her eggs, the male closely follows; and as she drops them upon the gravelly bottom, he discharges upon them the zoosperms by which they are fecundated.

Plain Facts for Old and Young John Harvey Kellogg 1897

A microscopic examination shows this matter to be composed largely of zoosperms, which decides its origin.

Plain Facts for Old and Young John Harvey Kellogg 1897

After a time, each granule acquires a long appendage, and then the cell has become converted into a bundle of small zoosperms.

Plain Facts for Old and Young John Harvey Kellogg 1897

-- The uterine life of the new individual begins with the impregnation of the ovum, which occurs the instant it is brought in contact with the zoosperms of the male.

Plain Facts for Old and Young John Harvey Kellogg 1897

In the mule, the zoosperms are either entirely absent or else very imperfectly developed; hence the fact that a colt having a mule for its sire is one of the rarest of curiosities, though a few instances have been reported.

Plain Facts for Old and Young John Harvey Kellogg 1897