58 
Split-Hand and Split-Foot Deformities 
45. Bateson (W.). "Mendel's Principles of Heredity." Cambridge, 1902; and Brain, 1906, 
Pt. 104, p. 157. 
46. V. Bergmann (E.)*. "Handbuch d. pract. Chir." Bd. 4, Abth. 1, S. 339, and Abth. 2, 
S. 455. 
47. Devay. "Des Dangei's des Marriages Consanguins." Paris, 1862, p. 95 (cited by Windle, 
loc. cit.). 
48. FoRSTER (A.)*. " Die Missbildung des Menschen." Jena, 1861. 
49. Fort (J. A.). " Des ddformites congenitales, etc." Paris, 1869. 
50. GiNTROVicz. Inaug. Dissert. Wiirzbiirg (cited by Kiimmel, loc. cit.). 
51. Hilaire (GeofFroy Saint). " Histoire gen. et part, des Anomalies de I'organisation, etc." 
1832, T. 1, p. 676. 
52. Lewis (H. F.). Amer. Journ. Obstet. 1899, Vol. 40, p. 84. 
53. Lock (R. H.). " Recent progress in Variation, etc." London, 1906. 
54. Murray (J. J.). Med. Chir. Trans. 1863, Vol. 28, p. 29. 
55. Sutton (J. B.). " Evolution and disease." London, 1890. 
56. Vrolik (G.). Todd's Cyclopaed. Anat. and Physiol. London. 
57. Weismann (A.). " The Germ Plasm, etc." (Translated by Parker, etc. London, 1893.) 
58. WiEDERSHEiM (R.). " The Structure of Man." (Trans, by Bernard. London, 1895. p. 81.) 
59. Wilson (G.). Journ. Anat. and Physiol. 1896, Vol. 30, p. 437. 
60. Windle (B.). Journ. Linnean Soc. 1891, Vol. 23, p. 488 ; and Journ. Anat. and Physiol. 
1891-92, p. 295 ; and ibid. 1893-94, p. 25. 
61. Young (J. K.). "A Manual of Orthop. Surg." London, 1906. (This author refers to two 
families showing lobster-claw hand.) 
EXPLANATION OF PLATES. 
Plate I. Fig. 1. Genealogical tree of the " G " family. 
The following signs are used : — 
The horizontal lines are drawn from parent to parent. 
The oblique lines are drawn from parents to offspring. 
The wavy lines indicate uncertainty of order of birth. 
Black represents deformity, each quadrant of the circle representing the corresponding limb. 
The shaded circles are instances of doubtful deformity. 
The arrows when present indicate sex. 
M. signifies a miscarriage. S. P. = died without offspring. D. = diseased. Illeg. = illegitimate. 
Generation III, groups 3 and 4 represent 9 deformed and 2 normal offspring. 
In generation V, 33 and 34 are twins and the circles are joined by a single horizontal line. 
Plate II. Figs. 4 and 5. Photographs of the hands and feet of E. E. G. (Fig. 1, V, 41). The 
photographs show typical examples of the deformity in its external configuration. 
Plate III. Figs. 6 — 9. Left hand, right hand, left foot and right foot respectively of E. E. G. (V, 41). 
Note the symmetry. 
Plate IV. Figs. 10 and 11. Left and right hand of M. A. (IV, 17). Figs. 12 and 13. Left and right 
hand of E. M. G. (V, 40). 
Plate V. Fig. 14. Eight hand of L. V. G. (V, 45). Fig. 15. Eight foot of E. M. G. (V, 40). 
Fig. 16. Left foot of M. A. (IV, 17). Fig. 17. Left hand of W. H. A. (V, 24) ; note that 
all skiagrams with this exception are taken from the dorsal aspect. 
Plate VI. Figs. 18 and 19. Left and right hand of J. T. G. (V, 42). Figs. 20 and 21. Left and right 
foot of L. V. G. (V, 45). 
Plate VII. Figs. 22 and 23. Left and right hand of E. G. (IV, 23). Figs. 24 and 25. Left and 
right foot of J. T. G. (V, 42). 
* Certain of these authors give isolated cases of split-foot, but they are apparently taken from 
sources already referred to. 
