The purpose of this paper is to give rules for the construction of knots Mn of n crossings, having each one or more linear sections PR, such that by unkissing at P and at R, shall be obtained two unifilar knots of n – 1 crossings. See my paper “On the Twists of Listing and Tait,” page 363 of the Proc. R.S.E. The knot Mn is always made by a section ffc, i.e., by uniting the P's and R's of two 2-gons (PR) on Ke+2 and Ln-e, after cutting away the four edges PR.