Chap. IV. The Anatomy of a HORSE. 37 



The Corpora Striata, fo call'd from their cj-;^^ Corpora 



being ftreak'd or chamfei'd, arc only the Ends Striata. 



of the two Thighs, which proceed from the 



Buttocks j by thefe the Medulla oblongata adheres to the 



Brain, as has been obierved ; and by the Natei and Tejles 



above defcribed, it adheres to the Cerebellum or Brainlet. 



Between the Buttocks is placed that noted <r/^ n^.,^A„u 

 r^, 1 II- 1 1 /--.; I ; .• r j i V/^'f Glandula 

 vjiand, calld the Lilandula puiealis, and has pineah's 



been tliought by fome Philojbphers to be the 



Seat of the Soul, tho' modern Anatomilb have fo far de., 



graded it, as to make it only the Penis or Yardof iliC Brain, 



both on Account of its Situation, and probably as its feems 



to be of no other ufe but to feparate a little clear Lympha 



from the Arterial Blood. 



Between the Buttocks, and near this little crj^^ .^^ 



Gland, there is a fmail Chink, to which 



fome have given the Name of Anus^ or Arfe, others have 



called it the Fidva : whether it has obtained this Appellation 



in Derifion of the other, is not material. 



Asfor the /-^^/^//vW^i of the Brain, which by a-r r^ . ■ r 

 r u u 1 »jr u - 1 T^he Ventricles. 



iome havg been reckon d four, by lome three, 



and by others but one ; I (hall not trouble the Reader about 



the Number, but only take Notice, that they are fituated 



in the middle of the Brain, reaching forwards towards the 



Nofe, and downwards towards its Bottom, in Shape of a 



Half-moon. The ufe of thefe Ventricles is, according to 



the latelt Enquiries in Anatom.y, to ferve as a Receptacle 



for that Portion of the Serum which is feparated from the 



glandulous Skm that invells them, and from the Glandula 



pituitaria, and is thought to be again imbibed by the Veins, 



and by them condudted afrefh into the Mafs of Blood. They 



are likewife thought of ufe to give a free Pallage to the 



Blood in thofe Channels call'd the Plexus chorsides, that run 



along their Sides, which probably might be too much com- 



prels'd by the great Weight of the Brain, had not Nature 



found out that free and eafy Situation for them. 



Befides thofe Parts already defcribed, q-[ Vq^^:^ 

 there are to be found in the Brain the For- "'• * 



nix, the Septum lucidum, and the Corpus callofum. 



We have already taken Notice of the Corpus eallofumy 

 as teing the inner Subftance of the Brain, which is diftin- 

 guifli'd from the cortical Part that ir;volves it by itsWhite- 

 nefs, f^c. The Septum liuidum is only that Partition which 

 divides the Ventricle? j and the F.jrni^ h a kind of Viiuir, 

 D 3 or 



