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Yl. A Second Letter from A/r. Antony Van 
Leeuwenhoek, F. % S, to John Cham- 
berlayne, E, R, upon the fame 
SuhjeSi as the former^ 
SIR, 
S INCE the Communicating to You ray laft 
Thoughts and Obfervations concerning Fla- 
vors fome Weeks ago, I have often view’d the 
Hairs of my Chin with a Microfcope after they were cut 
off, and always obferved upon the White or Grey Hairs 
the Streaks which are ‘ made by the fmall Notches 
that, ^ as I told you in my former, I had dif- 
cover’d in my Razor, efpecially when thofe Hairs 
were Cut more obliquely than ufual 3 for in fuch 
Hairs I have often feen above twelve Streaks, cc- 
cafion’d by fo many Notches that were in the 
Razor, all within the Coropafs of a Hair’s breadth. 
Becaufe I would not truft wholly to my own 
Judgment, I caufed a Man of good Underftand- 
ing to view feveral Hairs through a Microfcope ^ 
and I ask’d him, how many little Streaks he ob- 
ferved ^ in the Cut of one of thofe Hairs ? Who 
anfwer’d me, Twelve. 
E e e c a 
A- 
