Page:The Harveian oration for 1874.djvu/60

 pathology can stand; and true to his guiding principle in his great discovery, while thanking Riolanus for his ‘Enchiridion Anatomicum et Pathologicum,’ the fruit, he says, of labours worthy of the prince of anatomists, he uses the following remarkable words, true beyond all controversy as far as regards material things: ‘Nulla est scientia quæ non ex præexistente cognitione oritur, nullaque certe et plene cognita notitia, quæ non ex sensu originem duxit.’

Riolanus in his book had indulged himself in the idle fancy of attempting to deduce from examination of the bodies of healthy subjects inferences as to the nature and seat of the diseases to which the human frame is subject; and Harvey says that, stimulated by his example, he too proposes to publish his ‘Medical Anatomy, or Anatomy in its Application to Medicine,’' a work, which it will be observed, he speaks of as being completed and only waiting for the printer. But his mode of proceeding in this work, he says, is different from that of Riolanus, since he purposes ‘to relate from the many dissections I have made of the bodies of