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CHAP. IIII. That the iudgement of Diseases had by the sole inspection of the Vrine, is vncertaine, yea oftentimes dangerous, and that wee ought not to repose any trust in the same.
SInce there is nothing so hard and difficult, which wee ought not to vndertake for the loue we beare to the truth, and the attaining to the knowledge of the most worthy things: and howsoeuer this bee a burthen too heauy for my weake shoulders to beare; yet haue I notwithstanding vndertaken this taske, being e••pecially rauished with the extraordinary affection I beare vnto so noble and excellent an Art, howsoeuer perhap•• I shall broach some such points as shall little please some relishes, especially of such as are chiefe offenders in this ki••de, as also of all such as are so blinded, and their eye•• so d••zeled with their old inueterate errors, that they cannot see the truth, how bright soeuer the same doe shine in the noone-tide of the day. It is likewise to be supposed that it will be hard to free my selfe from the hatred and indignation of a many euill-willers, while as I endeauour to free this so noble an Art from this most vncertaine, most vaine and vnprofitable coniecturing by Ʋrines, the which not with∣out great preiudice to the Patients health is dayly practi∣sed in the Physitians houses. But without any longer circumstance, let vs come now to the matter in hand. If wee carry in our minds such things as haue beene lately declared, it shall be easie for vs to conceiue of such things as shall now be spoken. By the Vrine then are chiefly knowne the disposition of the Liuer, of the Ʋeines, and by consequent of the whole body also. We must vnder∣stand also that since the Blood taketh the substantiall forme from the forming power and vertue of the Liuer, it commeth to passe that it answereth in equall proportion to the quality of the blood, of the which the Ʋrine is a