538 
Miscellanea 
IV. A Case of Familial Malformation in a Fowl's Head. 
By HUBERT M. TURNBULL, M.D., Director of the Pathological Institute 
of the London Hospital. 
S.D. 2105, 1912. Fowl's head received from Mr Roxburgh, 10th October, 1912. 
The breeder says that another chicken of the same brood has a similar deformity. Fowl 
examined turned out to be the heaviest of the whole brood, in spite of its crooked beak. 
External appearance. Head and neck of domestic fowl, ?cock. "Wattles are red and 
symmetrical. Flat, tongue-like, red comb. Eyes are of equal size. Above the nostril on the 
left side there is a semilunar cartilage 1 '5 cms. long and 0"5 cm. from above down ; nostril is 
2'1 cms. from the anterior canthus. Right nostril is 1'3 from anterior canthus; semilunar 
cartilage is 0 - 5 by 0"3 cm. Nostrils on both sides are 2 cms. from the angle of the mouth. 
Horny beak starts on the left side 2 - 3 cms. from the angle of the mouth, on the right side 
1 cm. from the angle. As a result the superior mandible on the left side is convex and the 
upper beak is twisted over to the right so that its point lies 02 cm. to the right of the right 
border of the lower beak, at a point 0 - 7 cm. from the end of the latter. The upper jaw and 
the beak on the right side form a sharp concavity. The anterior border of the orbit on the 
left side appears much farther back than on the right. Tongue is quite symmetrical. On the 
roof of the mouth the palate is divided into three divisions, one side having been cut longi- 
tudinally. The anterior part of the palate corresponding to the beak is not divided. This 
portion is deflected with the beak to the right side. 
The chief alteration in the soft parts is the small size of the right nostril and its 
operculum. A longitudinal incision had been made, in killing the fowl, through the palate to 
the left of the middle line. 
I. View of skull from 
above. Traced from a 
photograph. 
N = Nasal bones. 
F= Frontal bones. 
III. View of skull from right side. 
Traced from a photograph. 
II. View of skull from 
below. Traced from a 
photograph. Left pala- 
tal and pterygoid bones 
severed. 
