Proc. Roy. Socy. of Edin. ] 
[Vol. XXVII. 
Fig. 7. — Longitudinal section of the Bony Rib of a Meat-fed Rat 
(second generation), aet. two months, the section taken through 
one of the nodules described in the text. ( x 50.) 
Note the area of cartilage cells in the bone. Cf. fig. 8. 
I ( ig. 8. — Longitudinal section of the Shaft of the Radius of an Infant 
set. sixteen months, whose mother was fed on an excessive meat 
diet. ( x 90. ) 
Note the area of cartilage cells in the bone. Cf. fig. 7. 
Dr Chalmers Watson. 
[Plate IV. 
