Memoirs of Dr. Joseph Priestley to the Year 1795 Volume 1

Memoirs of Dr. Joseph Priestley to the Year 1795 Volume 1

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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. 1806 edition. Excerpt: ...aliquod vitale ab aqua, veluti alias ab aura secretum et in cruoris massam trajiciatur.) The air bladder he considers rather as a reservoir of air to be inspired, than a receptacle for excreted air; though the latter opinion is made probable by Dr. Priestley. The first part of his Treatises on Respiration is is chiefly anatomical. In p. 300 et seq. he states more fully his opinion, that vital air, is of a nitrosaline nature: that it is the principle of life, both in Animals and Vegetables: that combined with the sulphureo-saline particles in the blood, it is the stimulus to the muscular fibre, and of course to the heart heart as a muscle, p. 305 j but that the fermentation occasioned by the introduction of these particles into the bleed, is not confined to the left ventricle of the heart, but commences, in the passage of the blood through the lungs, and continues in the Arteries. This evidently approaches the theory, advane ed by Dr. Goodwyn in his tract on the Connection of life with respiration about sixteen years ago, viz. that the pure air combined with the blood is the stimulus to the left ventricle of the heart, and produces the alternate contraction, and dilation on which the circulation depends. Dr. Lower, in his treatise de motu sanguinis, and Fracassati, and Dr. Frederick Slare attributed the change of the colour of venous blood into a orid red, to the combination of the air with it. Lower I believe preceded Mayow, who quotes him, p. 148; the date of Fracassati's and Dr. Slare's observations I have not been able to ascertain, but they must have been near the time of Mayow. Lovvth. Ab. v. hi. p. 237. Sec Nich. Journ. T. 3 p. 119 on the probability of fishes separating oxygen from the water they inhabit. Q In his third treatise on...show more

Product details

  • Paperback | 96 pages
  • 189 x 246 x 5mm | 186g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 123653753X
  • 9781236537539