WAllNING GOLOKATION. 159 



Another specimen of tlie lizard licked, but did not take the 

 caterpillar. A Lacerta clridis licked, tasted, and finally 

 refused another caterpillar. A sand skink {Chalcides viri- 

 danus) licked and refused the same caterpillar. Urom%stix 

 spinipes went rather farther : it chewed up one, but did not 

 swallow it in the end. 



The most remarkable results were obtained by experiment 

 with two toads — one a common toad, the other a green one {Biifo 

 viridis). The common toad is a creature which will apparently 

 eat anything in the shape of an insect ; nothing seems to come 

 amiss : the largest humble bee and the most irritable of 

 wasps are swallowed without the least indication on the part 

 ■of the toad that they are capable of using their stings. A 

 common toad seized and swallowed a Cinnabar moth cater- 

 pillar directly it began to move, but almost immediately threw 

 it up, and the caterpillar did not appear to have suffered the 

 very least inconvenience from the events. 



Another toad in the same case ate a caterpillar, but neither 

 of these seemed disposed to try another. But these toads had 

 been fed, and were not particularly hungry. A green toad, 

 which was hungry, eagerly swallowed a caterpillar, and as 

 ■eagerly took a second. In experiments of this kind it is 

 always important to give an animal more than one of the 

 insects experimented with, in order to see how far experience 

 may tell in influencing its behaviour. 



Another caterpillar was offered to a brown Capuchin 

 monkey, who ate it, though perhaps rather slowly and reflec- 

 tively. 



The larva of the Vapourer moth {Orgyia antiqua) is con- 

 spicuously colom'ed and armed with tufts of hairs. One was 

 offered to a green lizard, which seized it, and seemed at the 

 same time both anxious and unwilling to eat it. The lizard 



