ANIMAL MECHANICS. 429 



Muscular Type of Wings of Emu and Cassowary. 







Emu, 



Emu, 



Casso- 







No. l 



No. 2 



wary, 







(male) . 



(male). 



(male) . 





Scapular. 



Per cent. 



Per cent. 



Per cent. 



I. 





27. 



56 



26.41 



25.74 



2. 





12 



24 



IO.38 



9.90 



3- 



Serratus magnus, .... 



x 4- 



28 



8.49 



14.85 





Abductors. 











i. 





_ 

 5 



IO 



7-55 



7.92 



2. 



Pectoralis avium, .... 



9 



19 



3- 77 



T A 8C 



14.05 



3- 





6. 



12 



6.61 



2.97 



4. 







02 



0.94 







Flexors. 











1. 





5 



IO 



7-55 



2.97 



2. 







02 



0.94 





3- 



Latissimus dorsi, .... 



7 



15 



7-55 



10.89 





Extensors. 











1. 



2. 



Biceps, \ 

 Brachiseus, ) 



1 



02 



3.77 



1. 00 





Adductors. 











1. 



Coraco-brachialis, .... 



5 



IO 



8. 02 



I 98 



2. 



Pectoralis major, ) 





IO 



8.02 





3- 



Pectoralis minor, ] 



5 



6.93 





100 



lOO 



100 







Oz. av. 



Oz. av. 



Oz. av. 





Total weight, . . 



0.98 



106 



IOI 



On arranging the muscles in groups, as before, we find the 

 following Table : — 



Muscular Type of Wings of Emu and Cassowary. 





Scapular. 



Abductor. 



Flexor. 



Extensor. 



Adductor. 



Emu, No. 1, . . . 

 Emu, No. 2, . . . 

 Cassowary, . . . 



Per cent. 

 54.08 

 45.28 

 50-49 



Per cent. 

 21.43 

 18.87 

 25.74 



Per cent. 

 I3-27 

 16.04 

 13.86 



Per cent. 

 1 .02 



3-77 

 1. 00 



Per cent. 

 I0.20 

 16.04 

 8.91 



