J. S. Manson 57 



articulating and non-articulating heads of the 5th metatarsal is much 

 less comjiictc. In this fnot they are almost separate. 



Generation I V. 



IV. 2, !), 11, IS. Nellie, Thomas, Alfred, (JhidyH, unaffeetcd, dead. 



IV. 4, 5, 7, 10. Stillborn, Maggie, James, Mabel, affected, dead. 



IV. 12, 13. Stillborn, condition unknown. 



IV. 3. Mary, unaffected, married IV. 1, Wilford, issue V. 1, 2. 



IV. 6. William, webbed 3rd and 4th fingers on both hands; on the 

 right hand the 4th finger is permanently crossed over the dorsum i>f the 

 3rd finger. Feet are normal. 



Right Hand. The chief abnoi'inal features in the bony formation 

 of this hand are the short anil irregularly shaped proximal phalanx 

 of the 4th finger and the process of bone projecting from it towards 

 the head of the 3rd metacarpal bone. This piece of bone resembles 

 a portion of a metacarpal bone and does not seem to form a bony 

 union with the proximal phalanx of the 4th finger. The end towards 

 the head of the 3rd metacarpal .seems to jjush this apart from its fellow 

 the 4th metacarpal. This sc^paration of the metacarpals, together with 

 the junction of skin, are the causes of the marked deformity in this 

 hand. The other phalanges of the 3rd and 4th fingers are normal in 

 shape and size. 



Sesamoid bones at 1st, 2nd, 3nl and .5th mctacarpo-phalangeal 

 joints. 



Left Hand. Here the bony condition is normal, and the abnor- 

 mality is limited to the skin. 



Sesamoid bones 1st, 2nd, 3rd, 4th and .5th mctacarpo-phalangeal 

 joints. 



IV. 8. Charlotte (see Plate XIV, B). Webbed 3rd and 4th fingers 

 on right hand. Left hand normal ; 6 toes on right foot, 4th, 5th, 6th 

 webbed. Left foot apparently normal. 



Rii/lit Hand, shows abnormal and shortened middle phalanx of 

 4th finger and bony union of extremities of 3rd and 4th terminal 

 phalanges. 



.Sesamoid bones at 1st, 2nd, 3rd and 5th metacaipo-phalangeal 

 joints. 



Left Hand, is normal. 



Sesamoid bones at 1st, 2nd, 3i(l, 4th and 5th metacarpo-phnlano-eal 

 joints. 



