SPERMATOZOON, the male element; one of the flagellated cells developed in the tem., (see TESTICLE) of male animals, and Rosiveyed in their secretion (sperm of semen) .tpi an egg. of a female of the same kind, by copulation, or otherwise, for the sake of cualeseang, with (impregnating or fertilizing) that egg, and sets., ting up the developmental changes which rexult,, ,.--'1,1 the formation of a new living being.- The ....,;-.perrnatozoa are extremely minute bodies, nearly -,,,- always motile, usually slender and whiplike, tapering toward one extremity, and commonly with a rounded head at the other; and are de veloped by a succession of cell-divisions from certain cells in the testicle, Called the primitive male cells, similar in character to the immature ova. It appears an individualized living cell, swimming about in the semen,' The manner in which the spermatozoon unites with the ovum is explained in the article EMERYOUDGY. It was the belief of a school of naturalists of the 17th called "Sperniatists,)) that the whole of the resulting being was enfolded in and derived from the snermatozoon; while an opposing school the asserted that in the egg alone was contained the germ of the animal.
(See PREFAMATION). either was right; the development of a foetus sults from a union of both male and female elements. See CELL; EmsnvotoGit; and cons t authorities mentioned thereunder.
- a - genus SIMPreMbpich4t,?Of WNW niorPthai 20 species ?xliot in! die United while' subsequently connected with the Paris and Lon don branches of the firm before returning to New York. He became the head of the family firm of bankers and was an officer in many other banks and trust companies. He was one of the founders of the Provident Loan Com pany and a trustee of Teachers' College, Colum bia University to which he in 1902 presented the Speyer Scbool. He was actively connected with the defeat of the Tammany Hall organi zation in 1894.