...rule avoids the cloud of particles unless the latter is very large. This simple method turns out to be more effective in getting rid of stimuli of all sorts than might have been expected. If the first reaction is not successful, it is repeated one or more times. This...

...bends over toward the aboral side. It thus bends into a new position, but it does not always bend aivay from the source of stimulus; in some cases this reaction...(or in some cases before this is tried), so that the particles continue to come in a dense cloud, the ciliary current is suddenly stopped and apparently...

...cloud of particles, unless the latter is very large. This simple method of reaction turns out to be more effective in getting rid of stimuli of all sorts than might be expected. If the first reaction is not successful, it is usually repeated one or more times. This reaction...

...cloud of particles, unless the latter is very large. This simple method of reaction turns out to be more effective in getting rid of stimuli of all sorts than might be expected. If the first reaction is not successful, it is usually repeated one or more times. This reaction...

...of particles, unless the latter is very large. This simple method of reaction turns out to be morc effective in getting rid of stimuli of all sorts than might be expected. If the first reaction is not successful, it is usually repeated one or more times . . . If...

...the cloud of particles, unless the latter is very large. This simple . . . reaction turns out to be more effective in getting rid of stimuli of all sorts than might be expected. If the first reaction is not successful, it is usually repeated one or more times. . . ....

...cloud of particles, unless the latter is very large. This simple method of reaction turns out to be more effective in getting rid of stimuli of all sorts than might be expected. If the reaction is not successful, it is usually repeated one or more times. . . . If the...