 | Sir Norman Lockyer - 1881 - 770 páginas
...portion of the web itself, I found that the spider, if at the centre of the web, rapidly slews round so as to face the direction of the fork, feeling with...centre to ascertain which radial thread is vibrating, unless of course it should happen to be on that particular thread or on a stretched supporting thread... | |
 | Sir Norman Lockyer - 1881 - 656 páginas
...portion of the web itself, I found that the spider, if at the centre of the web, rapidly slews round so as to face the direction of the fork, feeling with...centre to ascertain which radial thread is vibrating, unless of course it should happen to be on that particular thread or on a stretched supporting thread... | |
 | 1881 - 898 páginas
...reached it, it would seize it, embrace it, and run along on the legs of the fork as often as it was made to sound, " never seeming to learn by experience...other things may buzz besides its natural food." If, when a spider had been enticed to the edge of the web, the fork was withdrawn, and then gradually brought... | |
 | George John Romanes - 1882 - 550 páginas
...; for the spider seizes it, embraces it, and runs about on the legs of the fork as often as it i» made to sound, never seeming to learn by experience...is applied, it cannot tell which way to go until it haa been to the centre to ascertain which radial thread is vibrating, unless of course it should happen... | |
 | James Crowther - 1882 - 204 páginas
...it seems to have the same charm as any fly ; for the spider seizes it, embraces it, and runs about the legs of the fork as often as it is made to sound,...spider is not at the centre of the web at the time the fork is applied, it cannot tell which way to go until it has been to the centre to ascertain which... | |
 | George John Romanes - 1884 - 552 páginas
...fork itself or a junction of two or more threads, the right one of which it instantly determines its before. If the fork is not removed when the spider...centre to ascertain which radial thread is vibrating, unless of course it should happen to be on that particular thread, or on a stretched supporting thread... | |
 | George John Romanes - 1888 - 606 páginas
...portion of the web itself, I found that the spider, if at the centre of the web, rapidly slues round so as to face the direction of "the fork, feeling...may buzz besides its natural food. If the spider is not'at the centre of the web at the time that the fork is applied, it cannot tell which way to go until... | |
 | George John Romanes - 1890 - 552 páginas
...of the web, rapidly slues round so as to face the direction of the fork, feeling with its fore-feet along which radial thread the vibration travels. Having...centre to ascertain which radial thread is vibrating, unless of course it should happen to be on that particular thread, or on a stretched supporting thread... | |
 | 1881 - 890 páginas
...as any fly ; for the spider seizes it, embraces it, and runs about on the legs of the fork as aften as it is made to sound, never seeming to learn by...centre to ascertain which radial thread is vibrating, unless of course it should happen to be on that particular thread or on a stretched supporting thread... | |
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Having become satisfied on this point, it next darts along that thread till it reaches either the fork itself or a junction of two or more threads, the right one of which it instantly determines as before. If the fork is not removed when the spider has... 