...distance was only about one-third of an inch, and they might easily have done so. * * * Thinking that the paper was a substance to which they were not accustomed,...one-eighth of an inch wide. The result was the same."* He strove to induce them to build a bridge of mould ; to drop the food they were carrying, or themselves...

...do so ; but it did not occur to them to push the paper bridge, though the distance was only about ^ inch, and they might easily have done so. After trying...not accustomed, I tried the same with a bit of straw 1 inch long and £ inch wide. The result was the same. I repeated this more than once. Again I suspended...

...leave a chasm just so wide that the ants could not reach across. They came and tried hard to do so ; but it did not occur to them to push the paper bridge,...and returned home. This I repeated several times. 4. Then, thinking that paper was a substance to which they were not accustomed, I tried the same with...

...leave a chasm just so wide that the ants could not reach across. They came and tried hard to do so; but it did not occur to them to push the paper bridge,...inch wide. The result was the same. I repeated this more than once. Again, I suspended some honey over a nest of yellow ants, at a height of about half...

...leave a chasm just so wide that the ants could not reach across. They came and tried hard to do so; but it did not occur to them to push the paper bridge,...inch wide. The result was the same. I repeated this more than once. Again, I suspended some honey over a nest of yellow ants, at a height of about half...

...but it did not occur to them to push the paper bridge, though the distance was only about one third of an inch, and they might easily have done so. After...tried the same with a bit of straw one inch long and one eighth of an inch wide. The result was the same. I repeated this more than once. Again, I suspended...

...but it did not occur to them to push the paper bridge, though the distance was only about one third of an inch, and they might easily have done so. After...tried the same with a bit of straw one inch long and one eighth of an inch wide. The result was the same. I repeated this more than once. Again, I suspended...

...twenty-five ants were so engaged, I moved the little paper bridge slightly, so as to leave a chasm just so wide that the ants could not reach across. They came...one-eighth of an inch wide. The result was the same. Again, I placed particles of food close to and directly over the nest, but * See p. 37. t Supra, p....

...twenty-five ants were so engaged, I moved the little paper bridge slightly, so as to leave a chasm just so wide that the ants could not reach across. They came...one-eighth of an inch wide. The result was the same. Again, I placed particles of food close to and directly over the nest, but * See p. 37. t Supra, p....

...inch, and they . might easily have done so. After trying for about a quarter 1 of an hour they gave np the attempt and returned home. This I repeated several...thinking that paper was a substance to which they were nut accustomed, I tried the same with a bit of straw one inch long and one-eighth of an inch wide....