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It is notaworthy that in 16 of the 24 examinations the
spermatozoa numbered less than 10,000, especially, in 14
examinations they were below 1,000.
he
The nurber of spermatozoa at the time of ejaculstion:
iis was caleulated from the cuantity of ejaculetion and the
muncser of spermatozoa per unit volume of their spern,
Tne total number of spermetozoa of a healthy Japanese
adult is considsred to be 3 x 1of -- 5x 108 or unwards.
It
was in 7 of the 24 exerninations that value was shown to be
ebove 3X 107,
Mobility of spermatozoa.
The nobility of spermatozoa im.ediately after sperm
ej-culation was <exanined chiefly under the ohase contrast
wicraoscope.,
*
The rate of mobility was caleulated in accordance
vith the Nishixawa method, by dividing the sreriatezsa into
these sroups by 1, 3/4, 1/2,3) 1/4 and O respsctively, and putting
tosether the product which resulted,
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ww
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3 x 1/2
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Stn croup, sernding still
Rate of mobility
ox 0
Total
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