s and b [Footnote 11: b is here and later on measured on the right side of the foot as seen by the spectator.]. The concavity of the knee outside r is higher than that inside a . The half of the whole height of the leg from the foot r , is half way between the prominence s and the ground b . v is half way between t and b . The thickness of the thigh seen in front is equal to the greatest width of the face, that is 2/3 of the length from the chin to the top of the head; z r is 5/6 of 7 to v ; m n is equal to 7 v and is 1/4 of r b , x y goes 3 times into r b , and into r s .
[Footnote 22-35: The sketch illustrating these lines is on Pl. XIII,
No. 2.]
[Footnote 22: a b entra in c f 6 e 6 in c n. Accurate measurement however obliges us to read 7 for 6.] a b goes six times into c f and six times into c n and is equal to g h ; i k l m goes 4 times into d f , and 4 times into d n and is 3/7 of the foot; p q r s goes 3 times into _d f, and 3 times into b n ; [Footnote: 25. y is not to be found on the diagram and x occurs twice; this makes the passage very obscure.] x y is 1/8 of x f and is equal to n q . 3 7 is 1/9 of n f ; 4 5 is 1/10