Animal Locomotion: Or Walking, Swimming, and Flying, with a Dissertation on AeronauticsD. Appleton, 1882 - 264 páginas |
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Página 28
... Compare with Figs . 7 FIG . 6. - Wing of bird . Shows how the bones of the arm ( a ) , forearm ( b ) , and hand ( c ) , are twisted , and form a conical screw . and 8. - Original . q FIG . 7 . FIG . 8 . FIG . 7. - Anterior extremity of ...
... Compare with Figs . 7 FIG . 6. - Wing of bird . Shows how the bones of the arm ( a ) , forearm ( b ) , and hand ( c ) , are twisted , and form a conical screw . and 8. - Original . q FIG . 7 . FIG . 8 . FIG . 7. - Anterior extremity of ...
Página 36
... ( fig . 17 ) support the anterior or thick margin and the extremity of the wing , and may not inaptly be compared to the nervures in corresponding positions in the wing of the beetle . - Original . d n n n a FIG . 17. - The Bat ...
... ( fig . 17 ) support the anterior or thick margin and the extremity of the wing , and may not inaptly be compared to the nervures in corresponding positions in the wing of the beetle . - Original . d n n n a FIG . 17. - The Bat ...
Página 37
... Compare with fig . 19 , p . 39. - Original . In this there is a double purpose - the limited area pre- sented to the ground affording the animal sufficient support and leverage , and enabling it to disentangle its feet with the utmost ...
... Compare with fig . 19 , p . 39. - Original . In this there is a double purpose - the limited area pre- sented to the ground affording the animal sufficient support and leverage , and enabling it to disentangle its feet with the utmost ...
Página 39
... Compare with fig . 18 , p . 37. - Original . In the hexapod insects , according to Müller , the fore and hind foot of the one side and the middle one of the opposite side move together to make one step , the three corresponding and ...
... Compare with fig . 18 , p . 37. - Original . In the hexapod insects , according to Müller , the fore and hind foot of the one side and the middle one of the opposite side move together to make one step , the three corresponding and ...
Página 41
... FIG . 20. - Horse in the act of trotting . In this , as in all the other paces , the body of the horse is levered ... Compare with figs 18 and 19 , pp . 37 and 39. — Original . occurs , and each successive hind foot as it is implanted ...
... FIG . 20. - Horse in the act of trotting . In this , as in all the other paces , the body of the horse is levered ... Compare with figs 18 and 19 , pp . 37 and 39. — Original . occurs , and each successive hind foot as it is implanted ...
Outras edições - Ver tudo
Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on ... James Bell Pettigrew Visualização integral - 1885 |
Animal Locomotion, Or, Walking, Swimming, and Flying: With a Dissertation on ... James Bell Pettigrew Visualização integral - 1874 |
Animal Locomotion: Or, Walking, Swimming and Flying, with a Dissertation on ... James Bell Pettigrew Visualização integral - 1893 |
Palavras e frases frequentes
action aërial animals arrangement artificial wave wing artificial wing ascends ball-and-socket joint bat and bird biped blades body bones Borelli Compare with fig concave dead points depressed described downward dugong elastic bands elastic ligaments elbow-joint elevating and propelling elytra extended feathers feet fish flexed flexion flight flying foot force fore gannet gliding gravity hind horizontal direction humerus inclined planes increased insect insect wing kite less lever limbs locomotion long axis machine manner Marey motion move movements muscles muscular muscular system natural wing oblique oscillate ostrich pectoral fins pinion piston porpoise portions position posterior margin posterior or thin produced quadruped rapidity remarkable resistance reverse rigid root rotation sail screw shoulder-joint side Sir George Cayley speed spiral superior band swimming tail thick margin tion trunk universal joint upward direction upwards and forwards velocity vertical vibrate walking waved track wedge weight wing descends