22 



TOPOGRAPH i 



The i> --kull seen from within. \ 





Must ration 



[ 



:i should also ^ -^^^ \ hich are aper- 



iie cranium giving pa >x^cnous conm othXexternul veins of the head 



/^od in th' \. '"d, so that 



e the cerebratsinuses, particu; the inr \ >od-pressure is in- 



rin>*:jiio-i:iTTnTwrr ~ ' ~~ of blood from tl. \ ..e purpose 



/iii ' 1 i \\c* i>o T in i \ 



illru t-'-> 7^ " ~~~~ 



. j^l^flha^-tlynii int'ii-riiui :.. sumi'limR carried from the ; 

 er inf/ammat- f the scalp to the 



>mbosis 



54"'" 



or both ^uhitlrtoV'Mm 

 sinus '^ 9bi '^ 9 ^S5^ < 

 foramen 



audilomwneBWP^- 



ina are subject to very \ We dis- 



igittal suture \ : the 



longitudinal sinus and may bi \ upon one 

 ng the occipital veins wkh the lateral 

 occipital artery to the dura mater). This 



base of tlje~T~ -__ two fin,- ! ths l)ehind \ rnal 



of all the emissary I 



I 



I 



/ of the 

 I 



- small foramina- \ 

 ; the torcula? ili. 



the foramina for tin. / 



1 



;ui:ir loramen, the i 

 <>f thi 

 low th 



^4c i 



rtion 



aujiqcnu ui 



but al 



mid,. tew IsJiqiwo Itmatal 



nurr> 









r-esence of 

 They are 

 <_rior 

 of the frontal 



:./ cranial 



jndum, ovale, and 



/ ) or roof of 



the squamous por- 



