222 DESCRIPTION of a 
aorta to the veffel which accompanies the continuation of the 
umbilical veins ; but {peaks of his aorta as afcending from the 
thorax to the head *, and fending off the fubclavian and the 
carotid arteries ; and remarks, that canals proper to the latter 
were wanting +. And he. obferves, that the aorta, after de- 
fcending, as ufual, between the crura of the diaphragm, gave 
off the mefenteric, renal, lumbar and iliac arteries; and that 
the left iliac artery fent off an umbilical artery ; and concludes. 
his defcription in the following words: “ Ita, quidem, fi arte- 
“ riz umbilicalis dextre, arterieque celiace defectus--—ex- 
“ cipiatur, vix ab ufitata fabrica aberrans arteria aorta in abdo- 
“ mine diftribuitur.”’ 4 
Arter an elaborate defcription of the feveral parts of the 
monfter; Dr RoEDERER propofes the caufe of the motion of 
its humours, in the following words: 
-P. 189. ‘‘ Morus qui—humores agitat, caufa indagatur. 
“ Aft aliquis, lentus licet, foetus parafitici humores motus. 
“ agitavit. A corde, fueto motore, repeti ifte motus nequit, ne- 
“ que multum auxilii propulfus in uterum maternum fanguis: 
“ ferre poteft. Prater vero iftum, levem, debilemque. 
“‘ Ipfa vaforum actio, five contrahendo agat, five attrahendo,. 
6s 1: 
vi 
* P, 121. ‘ Arteria magna, quam aortam yocant, ex abdomine in thoracem afcendit. 
In thorace eandem pene directionem fervans, nullogue cum.corde canali confluens, fola et, 
a corde diftincta, iter fuum abfolvit. Nullus proinde ex aorta arcus: formari poteft, fed. 
laterales rami ex recto. aorte trunco emittuntur. Sunt ifti rami qui deferipti fequun- 
tar. 
In regione cofte prima leviflime defcendentes arterize fubclayiz nafcuntur ; ex quibus. 
viciffim triplex alia ramorum fpecies oritur, quarum primus ad cervicem, &c. Porro 
truncus aorte per femipollicem poftquam progreffus eft in duos ramos dividitur, duas 
nempe arterias carotides, que ad altitudinem laryngis fine infigniori ramo_afcendunt, 
———-Afcendit, autem, carotis dextra, &c, Ad latus tandem laryngis canalis commu- 
nis in fex omnino ramos dividitur.”’ 
+ P. 143. ‘ Canalis pro arteria carotide deeft, Carotis per amplum foramen lace- 
rum ad cerebrum tendit.”’ 
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