Spermia Transport in Man

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Abstract
Brown examined a patient suffering from temporary aspermia in which the resumption of spermatogene-sis was studied in order to determine the transport time through the excurrent ducts as well as the time consumed for spermatogenic recovery. The spermicidal time was detd. by the method of Brown and Gamble according to which an equal portion of 2.8% of K acid phthalate soln. was mixed with the sperm and then observed under the microscope with dark field illumination and a 16 mm. objective. The vitality of the spermia was detd. by subjecting portions of the ejaculate to 5[degree]C, to 28[degree]C. and to 37[degree]C. and at intervals the rapidity of the "aging" process was detd. by using the phthalate spermicidal tests as above. The mean spermicidal time of 74 previous ejaculates was 63 mins. with a standard deviation of 31 mins. Evidently, the transport time through the human S excurrent ducts is 19-23 days.

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