Dissertatio Inavgvralis Medica, Refellens Commvnem Illam Objectionem: Qvod Medicina Sit Ars Mere Conjectvralis / Qvam Annvente Gratia Divina Avctoritate Inclyti Ordinis Medici Pro Gradv Doctoris Svmmisqve In Arte Salvtari Privilegiis Atqve Immvnitatibvs Rite Ac Solemniter Impetrandis, Pvblico Philiatrorvm Examini Svbmittit Avctor Abraham John, Lignicio-Silesivs. In Avditorio Majori Collegii Majoris, Horis Consvetis. Die XIV. Decembris, A. MDCCXXXIX. Erfordiae : Typis Heringii, 1739