84 ABNORMAL CONDITIONS OF THE SKIN. 



astragalus, the lateral position of the navicular bone in respect to 

 the astragalus, the displacement inwards and backwards of the 

 cuboid bone, and the angle of flexion of the anterior portion of the 

 foot from the transverse tarsal joint are well exhibited. 



Presented by W. Adams, Esq., 1864. 



b. Congenital distortions of bones by curvature. 



350. The skeleton of the hind leg of a Rabbit, in which the 



femur is much shortened and curved. During life the 

 animal was unable to use the limb ; it was turned up over 

 its back. Presented by B. T. Lowne, Esq., 1871. 



351. The bones of the arms of a Human subject, with extreme 



contortion of the radius and ulna in both limbs. The 

 carpal extremity of the right ulna is dislocated. 



c. Congenital dislocation. 



352. The phalanges of a distorted Human hand, dislocated and 



adherent to each other, probably by abnormal muscular 

 contractions at an early period. The specimen is im- 

 perfect. Hunterian. 



353. Two of the metacarpal bones and some of the phalanges 



of a similar distorted hand. The specimen is imperfect. 



Hunterian. 



SERIES IV. 



ABNORMAL CONDITIONS OF THE SKIN AND ITS 

 APPENDAGES. 



The specimens classed under this Series are probably all due 

 to variation or congenital diseases. As there are but few of them, 

 and nothing is known of their nature, they have not been further 

 subdivided. 



354. A Fowl which is almost entirely without feathers. It came 



from the egg in this condition and lived seven months. 



Purchased. 



355. A full-grown Mouse without hair on its skin from birth. 



The vibrissse and scales on the tail are normal, and the 



