Animal locomotion or walking, swimming, and flying : with a dissertation on aëronautics (1873)
Pettigrew, James Bell, 1834-1908 · London : Henry S. King & Co. · leaf 117
d (as at present constructed) destined to navigate the air,and levity to that destined to navigate the water. If a birdwas made very large and very light, it is obvious that thediving force at its disposal would be inadequate to submergeit. If, again, it was made very small and very heavy, it… … - ci S2 :-■ > d 2 e §51 .... w§-?s c £ a .rf V £ ? -5 tc - - — rt 3 > c: > — —~~ ~~ +1^ ^cs .2 ^ 2 Z g, - ^S s rt 2 c o -2 -3 « 5 % * 5 -r - 4 g I :s S -*»«•§ 1 2.3 2 =3 SoJ ^.S^-s . s <u 2 s § — ~ - ^ ^ ® ! 2 J? ® o 3 81 r.rlc-l ill!o is 5 « 5 a SI which flies in the air, and has…
Animal locomotion · Physiology · Aeronautics
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