ursr /./:> // V7//. //// .\ A wi 



from the siililiimhar region hy a tendon, which is confounded with that of its 

 congener. 



Tin /" i-ij'ln /<// HiiifH-iilor portion is continuous, by its concentric border. 



i-iir. us. 



"i mi. III:M : i'-n.i:i.>i; i \ 



1. 1', Tin- two portions of the right pillar; 2, Left pill.ir; :i, T.-ii.l.-ii> oft!.,- pill.ir, ; 

 4,4', Peripheral inusnilnr portion: .">. Left. leaHct of the :i|>n.Miioti, |K,rtioii : 

 Ui^'ht l.Mtl.-t of the same; 6, Posterior vena cava ; 7, <Kv..plia^us pairing 

 throiiL'h tii- optfuing in the right pillar; 8, Posterior aortit ..-tw.-.-n th.- t\\.. 

 j.illars': '.i. Cartilaginous circle of the ribs; 10, 11, STti.ni of the |>sms nn 

 1.'. Beetion of a lumbar vertebra; III, Section of the .oininon mia; 14, l;.-i 

 l of the !a>t rib: 1"'. Xiplioiil appendage of the sternum. 



\\itli tin- <-.-iitnil aiM.in-urosis. Its excentric border is divided into dcntatii.ns. 

 ..1 on tin- left side, it nearly always joins the left pillar ; hut on 

 -i.l.- it stops :it :i certain .li-t:ince from the COlTOSIX'lidiiiu' p 



