Animal intelligence . tunnel c, would proceedbetween five pairs ofwooden bricks, each 3inches in length and 1|inches in height. Whenthey got to know theirway they went quitestraight along the line d eFig. 3. to a. The board was then twisted as shown in Fig. 4. The bricks and tunnel being arranged exactly in thesame direction as be-fore, but the boardhaving been moved, theline d e was now out-side them. The change,however, did not at alldiscompose the ants -,but instead of going,as before, through thetunnel and betweenthe rows of bricks toFig. 4. (X, they walked exactly aiong the old path to e.
Animal intelligence . tunnel c, would proceedbetween five pairs ofwooden bricks, each 3inches in length and 1|inches in height. Whenthey got to know theirway they went quitestraight along the line d eFig. 3. to a. The board was then twisted as shown in Fig. 4. The bricks and tunnel being arranged exactly in thesame direction as be-fore, but the boardhaving been moved, theline d e was now out-side them. The change,however, did not at alldiscompose the ants -,but instead of going,as before, through thetunnel and betweenthe rows of bricks toFig. 4. (X, they walked exactly aiong the old path to e.^ Keeping the board steady, butJ moving the brick pathway to the left-hand corner ofthe board where the foodwas next placed (Fig. 5),had the effect of makingthe ant first go to the oldposition of the food at a,whence it veered to i newposition, which we maycall X. The bricks and^^ food were then moved to- wards the right-hand comer of the board— over a dis-tance of 8 inches (Fig. 6). The ant now first went to
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