In these cases it may have been thought that the wayward and flighty impulses of love and madness were counteracted by the steadying influence of a heavy stone. [Sidenote: Homoeopathic magic of special kinds of stones.] But while a general magical efficacy may be supposed {p162} to reside in all stones by reason of their common properties of weight and solidity, special magical virtues are attributed to particular stones, or kinds of stone, in accordance with their individual or specific qualities of shape and colour. For example, a pot-hole in a rocky gorge of Central Australia contains many rounded boulders which, in the opinion of the Warramunga tribe, represent the kidneys, heart, tail, intestines, and so forth of an old euro, a species of kangaroo. Hence the natives jump into the pool, and after splashing the water all over their bodies rub one another with the stones, believing that this will enable them to catch euros.​[590] Again, not very far from Alice Springs, in Central Australia, there is a heap of stones supposed to be the vomit of two men of the eagle-hawk totem who had dined too copiously on eagle-hawk men, women, and children. The natives think that if any person caught sight of these stones he would be taken very sick on the spot; hence the heap is covered with sticks, to which every passer-by adds one in order to prevent the evil magic from coming out and turning his stomach.​[591] The Indians of Peru employed certain stones for the increase of maize, others for the increase of potatoes, and others again for the increase of cattle. The stones used to make maize grow were fashioned in the likeness of cobs of maize, and the stones destined to multiply cattle had the shape of sheep.​[592] [Sidenote: Homoeopathic magic of stones in New Caledonia.]