x SOME EXPERIMENTAL RESULTS 227 



high shelf where a little basket was placed. The result 

 showed that Jack had no appreciation of the knot, and did 

 not find the right place for himself, but learnt it rapidly 

 from my suggestion. 



The string was first made loose, and Jack got the basket by 

 pulling the lower portion. I then knotted it round the support, 

 but, as it happened, I did not make the knot tight enough ; and 

 by biting persistently at the lower string Jack got the biscuit again. 

 At the third trial, Jack pulled the lower string till it broke, when he 

 got some satisfaction in chewing it. He then pulled slightly at 

 the short hanging end of it, and then pulled above the knot. I 

 now substituted a stout cord, and first made it loose. Jack pulled 

 from below as before. I then tied it again, and the rest of his 

 record is as follows. 



5. He pulls hard at wrong place. Then higher up, close 

 to the knot but not above, which involves his coming round leg 

 of sideboard. Sits watching. Goes away. Comes back. Just 

 nips at cord in wrong place, but gives no real pull, and sits still 

 again. 



I say, " Good dog ;" he pulls at wrong part again. I point to 

 basket. Again at wrong ; now jumps up and at knot. I point 

 to basket again similar result. I point to string similar result. 

 I point to right spot of string. Same, only tries to get paw up on 

 to sideboard. 



I point again. He comes round under string and to right place, 

 and pulls successfully. 



6. Wrong again. Then waits. I say, " Good dog ;" no result. 

 Then he comes round, bites just by knot, but gets right side, and 

 so succeeds. 



7. Right at once (both these times he started from same corner 

 where he had sat at first, and had to come round corner of side- 

 board). 



8. Comes round at once, but at first takes string just below 

 knot. Quickly drops it, and pulls right. 



9. Pulls wrong hard. Then jumps at sideboard. Pulls, not 

 seriously, at wrong again. Pause. At last comes round as before 

 from corner, and yet pulls wrong, near knot. He lies still a long 

 time. At last I say, " Go on, Jack." He goes to right place, 

 pulls wrong slightly, then right. 



10. To right place at once (from old corner). Pulls wrong 

 slightly. Then right. 



11. Wrong slightly, but quickly to right. 



12. Barely mouths wrong string. Then right. 



13. Right at once. 



14. Same (makes a sort of feint at wrong). 



Q 2 



