T. Lewis and D. Embleton 
29 
the muscular structures which subserve these functions we can say little, as no 
opportunity of dissection has offered itself, but details may be gleaned from the 
few dissections figured by Otto, and from those reported by Schafer. 
In the followins: account of the defective conditions of the bones of the hands 
or feet the successive generations will be taken and tlie members of each generation 
described as they occur from left to right in the genealogical tree which has been 
given (Plate I, Fig. 1)*. In each case the source of information is stated, with 
the initials and where possible the dates of the birth and death of the individual. 
For the sake of brevity only those bones are described which are present. It 
must be understood that tliis applies rigidly unless it is otherwise expressly 
stated. The carpus which is omitted has in no case shown defect. The astragalus, 
OS calcis and navicular bone have likewise never given evidence of affection. 
With regard to the last row of tarsal bones it must be said that we are often 
unable to render an exact account of it, and this for two reasons. First the 
frequent difficulty of identifying the bones by screening, and secondly the fact 
that when the cleft is deep considerable derangement of the tarsus occurs with 
separation of the bones and welding of them. The account is consequently 
confined so far as these are concerned to the chief points of interest observed. 
The omission of mention of carpal and tarsal bones must consequently not be 
interpreted in the light of our previous remark. 
Generation I (I, 1 and 2)t. The parents of the first deformed individual are definitely 
stated by Anderson to have been normal. Enquiries from members of the family now li\ ing 
fully confirm this statement. They are said to have lived in Scotland^. 
Generation II, 2. Anderson states that J. G. was an only child, born in 1793 and dying in 
1871. The descendants confirm this. The Brentford records show the dates to be correct. 
Several of the family now living knew him and give details of his deformity. The accounts 
correspond fairly well. The defjrmity of the feet was of the usual type but the feet were 
exceptionally broad. The hands, both grossly deformed, are stated to have had many fingers, 
including the thumbs. 
Generation III. (Ill, 2.) J. H. G. (1825-1890). His children are unanimous in stating that 
he had one finger on each hand and two toes on each foot. 
(Ill, 3 and 4.) For these two groups we are mainly indebted to Anderson, who states that 
all the children died in childhood. The family know very little of them, and the accounts from 
different members fail to correspond. Unfortunately the Brentford records go back to 1837 
only, and the birth certificate of one W. G. born in 1838 is alone obtainable. We have therefore 
to rely on Anderson, and in consideration of the accuracy of his account in most points of 
importance in which we have been able to check it, we have little hesitation in accepting these 
figures. No information of the individual deformities is obtainable. 
(Ill, 7.) M. P. (1832, still alive, married). This individual, who is 75 years of age, is feeble 
minded ; visits to her abode have been without success, as both she and her friends steadily 
* For description, see Explanation of Plates, p. 58. 
t The bracketed figures refer throughout to the generation and number in the tree, Fig. 1. 
t It must be stated that we have recently lieard from Professor Pearson of the existence some 
seventy years ago of a Scotch family presenting "Lobster claw" deformity, said to date back to the 
seventeenth century. 
