Surgeon to the Westminster Hospital. GENTLEMEN.-During the winter session (I876-77), I have had the opportunity of showing the students typical cases of the four recognised forms of talipes, viz., varus, valgus, equinus, and calcaneus. The vulgar name for talipes, in any of its varieties, is club-foot; the surgical word is derived from talipedo, I walk on the ankles (talus= ankle, and pes=foot); varus=bow-legged; valgus=knock-kneed; equinus =belonging to horses; calcaneus= belonging to the

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... Confusion constantly arises at the onset between the distortions varus and valgus. Practically, if you put your knees in the position of "genu valgum", knock-kneed, your feet will as a consequence assume the distortion of talipes va/gus. By attitudinising, you can readily impress the four cardinal points of the club-foot compass on memory. I have illustrated them on the diagram. (Fig. I.)