Page 568 - Bob Holtzman "The Field Guide to Knots How to Identify, Tie, and Untie Over 80 Essential Knots for Outdoor Pursuits"

5. Working now in a clockwise direction, pass the rope behind the verticals and in front of the horizontals.
Pulling the rope very tight with each of these frapping turns will further tighten the first set of wraps.

6. Make three full frapping turns.

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