ANIMAL MECHANICS. 419 



Muscular Type of Birds Wings. 







i. 



11. 



in. 



IV. 



v. 



VI. 







Albatross 

 (mean of 

 two). 



Common 



Dorking 



Aylesbury 

 Duck 

 (mean of 

 two). 



Gannet. 



Curassow. 





Scapular. 



Per cent. 



Per cent. 



Per cent. 



Per cent. 



Per cent. 



Per cent. 



I. 



2. 



3- 



Trapezius, . . 

 Rhomboideus, . 

 Serratus magnus, 



Abductors. 



3- 6 4 



1.02 



3- 04 



i-45 



0. 36 

 0. 83 



2. 20 ) 



l.59i 

 0. 61 



2. 28 

 1-39 



2.05 \ 

 1. 10} 

 2.36 



1 . 84 

 0.74 



i. 



2. 



3- 



4- 



Deltoideus, . . 

 Pectoralis avium, 

 Teres major, . . 

 Spinatus, . . . 



Flexors . 



5-°7 

 5- " 

 i.43 

 2.03 



6.52 

 6.84 

 0.83 

 4.86 



2.73 

 19.94 

 o.53 

 5.15 



3- 75 

 11.28 



0.49 



4- 73 



3-94 

 4.88 

 1.73 

 2.52 



4.67 

 15-23 

 0.49 



5-9° 



2. 



3- 



Triceps longus, . 

 Subseapularis, . 

 Latissimus dorsi, 



4. 14 

 4.00 

 2.76 



5.02 



1-55 

 1 .92 



2-43 

 2. 27 

 0.68 



4.48 



2.37 

 O.98 



4.89 

 3-3° 

 3-46 



3.3i 

 1.84 

 1-35 



r. 



2. 



Extensors. 



Biceps humeri, . 

 Brachieeus . . 



Adductors. 



1.84 

 0.80 



3.57 

 1. 24 



2-35 

 0. 76 



2.61 



0. 90 



0.63 

 0.63 



3 94 

 0. 24 



I. 



2. 



3- 



Coraco-brachialis, 

 Pectoralis major, 

 Pectoralis minor. 



0. 69 

 62. 67 

 1.76 



0. 46 

 62. 90 

 1.65 



0. 76 

 35-4 2 

 2.58 



0. 90 

 61 . 96 

 1.88 



o.95 

 64. 42 



3-H 



2.83 



55 -°4 

 2.58 





IOO 



IOO 



100 



IOO 



IOO 



IOO 





Total weight, . 



Oz. av. 

 14'22 



Oz. av. 

 19-32 



Oz. av. 

 13-19 



Oz. av. 

 6-13 



Oz. av. 

 6-35 



Oz. av. 

 4-07 



2 e 2 



