FOOT-NOTES TO EVOLUTION. 
172 
on the other, four equal “ sperma- 
tids” are produced, which develop into four mature 
? 
bodies) being formed 
*poriad uoneinyeyy ] 
yonur 
jo Joguinu ou) 
“porta: 
(‘waA0g ayy) ‘33a ay} Jo 
quawudojaaap ay} Suneajsnyp wer8erq 
ere Per 
*porrad yyMorr) 
(‘x978013 
ST .SUOISTAIP 
nopeordry Nyy 
‘ 
6 ‘Oly 
(usa0g ayy) ‘uoozoyeuntads ayy 
Jo juowdopaap ay} Suneajsnyr wesserg 
‘pouad uoneanqeyy my 
“potad yyaiorn 
AVY] 
(‘x9ye013 
yonu st suorstaip 
jo Jaquinu oul) 
“ported woHeoyen [nA e 
‘ 
wee teeenees ete ane 
The contrast in size which exists between 
the two mature reproductive cells is enormous, the 
spermatozoa. 
