Observations on the Harveian doctrine of the circulation of the blood : in reply to those lately adduced by George Kerr, Esq. / by Alexander Ewing.
- Ewing, Alexander
- Date:
- 1817
Licence: Public Domain Mark
Credit: Observations on the Harveian doctrine of the circulation of the blood : in reply to those lately adduced by George Kerr, Esq. / by Alexander Ewing. Source: Wellcome Collection.
Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.
272/284 page 246
![though that is not altogether to be despaired of, if science advances. At all events, it has an infinitely greater chance of being correct, if founded on the Harveian doc trine of the circulation, than on any of the false, exploded, and mystical doctrines of Erasistratus, or those of any of the ancients, about humours, and spirits, and fires, and acids, and oils, and aethers. For we may apply the Greek adage—xa^y mgxmc, mxov Every one must approve of the qualifica- tions given by Galen, as essential to a true theory : Tlgujov uXyi$c$ hvui lei—ii\ot %(>rr crifj.0; -i]oc uKw'hxBoy raig 'v7rc]t9;icrocig a.^yjxtq. 1st. It must be true—2d. It must be use- ful—3d. It must be founded upon esta- blished principles.* I have,](https://iiif.wellcomecollection.org/image/b21454425_0274.jp2/full/800%2C/0/default.jpg)


