This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated.1701 Excerpt: ... the Organ in the same manner: And this properly is the fourth branch of conformity, I mentin'd but now. For instance upon the sight of 1 Lewis 'Tcr, I call to mind a bad one that I had taken before., because the Organ being jogg'd much after the same manner, occasions not only the Idea of the present object, but that of the former. This might have been accounted for several other ways, but the explication 1 have Qow given is the plainest. From all these Premises we are now to conclude, that the Mid.dla obktigata is the feat of the common Sense; that Memory consists in a parti:ulardifposition of its Fibres; and that the Nerves:mploy'd in sensation, impart to the separate )arts of the Medulla oblonata the motions that Jccasion such and such sentiments in the Soul. CHAP. V. 3/ the Medulla Spinalis, or Pith of the Back; and of Motion. TH E Medulla of the Brain and Cerebellum runs out in length, and descends to the Vertebraj tvhere it is to be accounted a body of nervous Fw bres, which running out of the Bones in which' hey are lodg'd, divide and distribute themselves, 11 over the Body. This Medulla is cover'd with three Membranes v or besides the Dura and Via Mater, it has a' hin tender Membrane, call'd Arachnoides, and odg'd between the other two. The Pia mater divides this Medulla into two parts, namely, the right, and the left-, and all along 'the track of the division, there's a fort of a Sinus, Tfe're markable maskable that the Vefiels and Cortical part of this medulla lie in the middle, and that the white substance is outermost. The Aura mater covers the Nerves that come forth from this medulla-, as well as those that come from the Brain. I chose to premise the description of the Medulla Spinalis, before I enter upon the motion of the parts because almo...
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