Sentence:  For to ſay [...] "That the ſolidneſſe of the Earth is for the ſtation and Manſion of liuing creatures": and the like, is well inquired & collected in METAPHISICKE, but in PHISICKE they are impertinent. Nay, they are indeed but <WSD>"Remoraes</WSD>" and hinderances to ſtay and ſlugge the Shippe from furder ſayling, and haue brought this to paſſe, that the ſearch of the "Phiſicall Cauſes" hath beene neglected. 
Meaning of the word marked with <WSD> tags:  A delay; a hindrance, an obstacle.