found in Sandstone in Dumfriesshire. 197 



must measure from the hind-foot forward to the second impres- 

 sion of the fore-foot on the same side. Now, this gives a dis- 

 tance of between 13 and 14 inches, which is considerably more, 

 however, than would have been the case had the animal been 

 standing still. If we compare this with the distance between 

 the line of the right and left feet (which is as to the fore-feet 

 nearly 6'| inches, and as to the hind-feet something more than 

 7^- inches), we shall see that an extraordinary thickness of the 

 animal's body in proportion to its length, is clearly indicated. 



No. 2. is a cast from another slab of sandstone, which was 

 taken from the quarry under my own eye, and which is also fix- 

 ed in the wall of the summer-house at Ruthwell Manse. It con- 

 tains the track of a smaller quadruped, perhaps a variety of the 

 same species ; for in some respects a resemblance may be traced. 

 In both of them the sole of the foot is undivided ; and in both, 

 a more than ordinary thickness of the body, in proportion to its 

 length, is shewn by an unusual distance between the marks of 

 the right and left feet, before as well as behind. In this speci- 

 men, however, the latter peculiarity is not proportionally so 

 great as in that of No. 1. nor do the feet appear to have been 

 of a similar shape, except in the circumstance already men- 

 tioned ; and indeed the relative proportions of the two are far 

 from corresponding throughout. Nor is it less worthy of obser- 

 vation, that although in No. 1, as has already been remarked, the 

 unusual length of the neck, or weight of the head and shoulders, 

 seems to be indicated by the deep sinking of the fore-feet, the 

 very reverse appears in No. 2, the impression of the fore-feet 

 being in this specimen only very slight, while that of the hind- 

 feet is strong and well defined. Whether or not these differences 

 can be accounted for by a difference of age in two animals of 

 the same family, I must leave to more skilful inquirers to de- 

 termine. 



The measurements are as follow : 



