Books by Johann Freitag:
Books in the extended shelves:
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Freitag, Johann: De opii natura et medicamentis opiatis ad omnes totius corporis affectus probatissimis & recta, rationali, hactenusq[ue] inexplicata iís utendi methodo : liber singularis cui de nova phthisin curandi raratione consilium & diversae consultationes medicinales sub sinem accessere (ex Officina Ioannis Sas ..., 1632), also by Hans Sas and Real Colegio de Cirugía de San Carlos (Madrid) (page images at HathiTrust)- Freitag, Johann: Disputatio medica de morbis substanti[ae] & cognatis quaestionibus contra hujus tempestatis novatores & paradoxologos quam inter caeteras pathologicas veritatis indagandae & propugnandae gratiâ (ex officina Sassiana, 1632), also by Jakob Martini (page images at HathiTrust)
- Freitag, Johann: Disputatio Medico Philosophica De formarum origine quam adversus venerandae antiquitati repugnantem neotericorum doctrinam (typis Johannis Sas..., 1633), also by Heinrich Welman and Real Colegio de Cirugía de San Carlos (Madrid) (page images at HathiTrust)
- Freitag, Johann: Noctes medicae siue De abusu medicinae tractatus : quo universum medicastrorum examen empiricorum modernorum uberrima annona, uromantes seu lotiophysici, agyrtae ... luculenter traduntur, examinantur & euertuntur ... (ex officina typographica Iohannis Bringeri :, 1616), also by Johann Bringer and Johann Berner (page images at HathiTrust)
Find more by Johann Freitag at your library, or elsewhere.