Researches chemical and philosophical: chiefly concerning nitrous oxide or dephlogisticated nitrous air and its respiration / By Humphry Davy.

  • Davy, Humphry, Sir, 1778-1829.
Date:
1800
Catalogue details

Licence: Public Domain Mark

Credit: Researches chemical and philosophical: chiefly concerning nitrous oxide or dephlogisticated nitrous air and its respiration / By Humphry Davy. Source: Wellcome Collection.

    569/614 (page 543)
    I am fenfible of a grateful glow circum pr^cor- dia. This has continued for hours.—In two or three inftances only has exhalation failed to be followed by pleafurable feeling, it has never been followed by the contrary. On a few occafions before the gas was exhautled, I have found it impollible to continue breathing. The pulfc at firfl. becomes fuller and Wronger. Whenever, after expofure to a cold wind, the warmth of the room has created a glow in the cheeks, the gas has increafed this to ftrong flufhing—which common air breathed in the fame way, faile-d to do. Several times I have found that a cut which had ceafed to be painful has fmarted afrefh, and on taking two dofes in fucceffion, the fmarting ceafed in the interval and returned during the fecond refpiration. I had no previous cxpeiSla- tion of the firft fmarting. \ out the region through which I imagine the path to wind, that will lead the obfervers of fome diftant generation to a point, whence they may enjoy a view of the fubtle, bufy and intricate movements of the organic creation as clear as Newton obtained of the movements of the heavenly mafles.