Measurement of ribs. 



49 





' 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



A 



30 



40 



55 



63 



65 



70 



70 



65 



70 



60 



60 



B 





20 



28 



35 



42 



50 



30 



25 



25 



20 



— 



C 



10 



5 



5 



4 



4 



5 



5 



5 



5 



5 



— 



D 



16 



5 



5 



5,5 



5 



6,5 



tì 



6 



5 



5 



4 



E 



9 



6 



5 



5 



5 



4,5 



4,5 



4 



4,5 



4 



4 



F 



10 



25 



30 



30 



30 



25 



25 



30 



30 



30 



— 



The Donkey. (Equus asinus), 



Tlie length of the first rib is from tubercle to lower end 140 mm. 

 (PI. III. fig. 6) The breadth of the lower end 30 mm. The breadth 

 3 cm. length 20 mm. and in below of the tubercle 15 mm. The rib 

 is thick (PI. III). 



The length of the 2"<* rib is 190 mm. from the lower anterior ex- 

 tremity to the tubercle and the greatest breadth is 18 mm. one cm. 

 above the lower end. 



The 3'"<* rib measures 220 mm, and has a breadth of 79 mm. at a 

 distance of two cm. behind lower extremity. 



The 4»h rib measures 260 mm. in length and has a breadth of 

 20 mm. 



The ô"» rib measures 295 mm. from the lower extremity of the 

 tubercle and has a nearly uniform breadths of 28 mm so far up as 

 the angle, above which in becomes narrower. 



The 6'*' rib measures 325 and has a breadth of 22 mm. The an- 

 terior border is sharp, the posterior thick. 



The 7'*» rib measures from tubercle to angle 340 mm. and is 20 mm. 

 broad at the lower extremity which is increased to 22 mm. at a dis- 

 tance of 10 cm. from that point. 



The 8"* rib is of nearly uniform breadth and measures 18 mm. below. 



The 9»'' 15 mm. The 18'*' and last 10 mm. The ribs between the 

 lO»»" and 18*'' have abreadth of 10 mm. and diminish in length. The 

 ribs from the the 8"' to the 13"' are thicker in proportion to their 

 breadth than those ribs above the S^^. The lower ribs are flat. 



In the horse. The ribs from the 2'"' to the 8"' are thinned at the 

 expense of their outer surfaces anteriorly to that they are sharp an- 

 teriorly and blunt posteriorly. 



InteruAtloDAle MonatMcbrifi fllr Auut u. I'bya. VI. 4 



