Thomas Browne, letter to his son Edward (June 14, 1676):
Some have queried why since nature hath been so sollicitous about the provisions for generation, this penis is only single and not double in masles, for which Sinibaldus thincks sufficiently answerd when hee sayth, Absit certe, nimis est unus. O no, God forbid, one is to much. However, the question is not altogether groundlesse, for in some animals this part is double, as in the viper, Sinibaldus, lib. 3, tractat. 1, cap. 3...
Robert Burns, letter to Robert Ainslie (March 3, 1788):
I took the opportunity of some dry horse-litter, & gave her such a thundering scalade that electrified the very marrow of her bones. Oh, what a peace-maker is a guid weel-willy pintle! It is the mediator, the guarantee, the umpire, the bond of union, the solemn league and covenant, the plenipotentiary, the Aaron's Rod, the Jacob's Staff, the prophet Elisha's pot of oil, the Ahasuerus Sceptre, the sword of mercy, the philosopher's stone, the Horn of Plenty, and Tree of Life between Man and Woman.