Note 278 — PART II. DR. COVEL’S DIARY. (continued 2)
Reading edition
Fipple = a stopper. “In recorders, which go with a gentle breath; the concave of the pipe, were it not for the fipple, that straiteneth the air much more than the simple concave, would yield no sound.” (Bacon, Nat. Hist., § 116.)