572 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



vol. 48. 



too, that the metacarpal and the phalanges were, as measured by 

 those of the Arab, longer than those of Xo. 7857. 



For convenience in making comparisons a table is presented which 

 combines the two immediately preceding tables with a part of the 

 one on page 570. 



Relative measurements of bones of Arabian horse, E. laurentiusf, No. 7857, and 



No. 7923. 



Bones. 



Arabian. 



E. lauren- 

 tius. 



Xo. 7857. 



No. 7923. 



Humerus 



Radius 



Metacarpal 



First phalange. . 

 Second phalange 



100 



S2. 7 



94.0 



100 



82.4 



93.2 



100 



Ss. 7 



92.5 



100 



91.6 



95.2 



100 



943 



102.8 



97.3 



92.3 



100.0 



104 8 



117.1 



A direct comparison will now be made between the fore leg re- 

 ferred to E. laurentius and those of Xo. 7857 and of Xo. 7923. using 

 the bones of the first named as standards of comparison. 



Relative measurements of bones of E. laurentiusf. of Xo. 7857, and of Xo. 7923. 



Bones. 



E. lauren- 

 tiusf. 



Xo. 7S57. Xo. 7923 



Humerus 



Radius 



Metacarpal 3 



First phalange . . . 

 Second phalange. 



100 

 100 

 100 

 100 



100 



113.7 

 113.1 

 104 2 

 103.9 

 109.1 



117.7 

 112.1 

 113.1 

 114 5 

 124 2 



It is seen that all the bones of the numbers 7857 and 7923 are 

 longer than the corresponding ones referred to E. laurentius. This 

 table brings out well the differences among the three horses as dis- 

 played in the fore limb. In the case of 7857 the greatest differ- 

 ence between it and E. laurentius? is in the humerus; this disparity 

 diminishes in the lower bones until the second phalange is reached. 

 In Xo. 7923 the disparity in the length of the longer bones is greatest 

 in the case of the humerus: it is reduced in the radius, but rises 

 higher and higher in the lower bones. 



The following table is taken from that given on page 569. Only 

 the bones of the fore leg are considered, the humerus, the radius, the 

 median metacarpal, and the first and second phalanges. In the case 

 of each of these its length is regarded as being 100 and certain 

 diameters are expressed in hundredths of this. 



