158 



C. M. Jackson, 



TABLE IV (Continued). 



Relative Size of Various Fetal Organs (in Percentage of Total Body 



Volume) in Specimens Observed. 



No. and Sex. 



123 (m) 128 (f) 



181 (m) 



(m) 130 (f) 



143 (m) 



Crown-rump length 

 Volume of body — 



6.8 cm. 

 24. cc. 



Head 



Upper extremities... 

 Lower extremities... 



Trunk 



Brain 



Spinal cord 



Thyroid gland 



Thymus 



Heart 



Right lung 



Left lung 



Liver 



Spleen 



Pancreas 



Right kidney 



Left kidney 



Right suprarenal. . . 

 Left suprarenal .... 



Stomach 



Intestines 



Sex glands 



43.75% 



4.17 



6.25 

 45.83 

 15.0 

 .458 



.833 

 1.21 

 1.00 

 7.08 



.292 

 .271 

 .188 

 .188 

 .375 

 2.29 



7.5 cm. 

 54. cc. 



9 cm. 

 80. cc. 



9 . 5 cm. 

 108 cc. 



10.5 cm. 

 122 cc. 



40.74% 

 6.11 

 10.2 

 42.96 

 20.37 

 .278 

 .11 

 .1 



.926 

 2.96 

 2.22 

 5.56 



.oJo 



.11 

 .377 

 .35 

 .17 

 .15 

 .33 

 2.78 



40. % 



6.88 



9.75 

 43.38 

 12.5 

 .25 

 .063 

 .075 



1.125 



1.63 



1.44 



5.25 

 .081 

 .094 

 .4 



.369 

 .288 

 .275 

 .25 



1.0 



39 81% 



6.02 



9.07 



45.09 



18.52 



.14 



.083 



.102 



1.39 



2.13 



1.85 



7.04 

 .074 

 .102 

 .46 

 .509 

 .204 

 .204 

 .26 



3.33 



39.35% 



5.33 



9.43 

 45.9 

 21.31 

 .164 

 .102 

 .148 



1.19 



1.07 

 .82 



7.38 

 .131 

 .123 

 .475 

 .484 

 .295 

 .344 

 .41 



3.36 



11. cm. 

 95. CO. 



40. % 



6.11 



8.42 

 45.47 

 20.95 

 .21 

 .095 

 .105 

 .842 



1.58 



1.16 



5.05 

 .053 

 .095 

 .295 . 

 .316 

 .158 

 .168 

 .21 



2.84 



