To cut the Nails of the Toes in the Water… You must hold your knife in your right hand (if you are right handed) and take up your left leg, and lay the foot on the right knee; there you may take it from the left hand, and with the right cut your Nails without any danger. Thus you may also pick your Toes; and if this has no other use or advantage yet the dexterity of the management may serve to recommend it.
Melchisédech Thévenot, The Art of Swimming
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