How Dogs Find thetr Way Home. 197 
her that night. On the following day, at about 5 p.m., she 
returned home, and this is the way she managed it: she 
seems to have spent the night in getting back to the neigh- 
bourhood of Wimpole-street, and then, having entered Harley- 
street (which is so like Wimpole-street as to confuse even 
experienced town travellers endowed with human reason), she 
probably mistook it for Wimpole-street, and her efforts to find 
her home became, of course, for the time, fruitless. At about 
7 am., the puppy was met by a milkworman, who was passing 
on her rounds. This woman had been in the habit of de- 
livering milk at the home of the dog, and, in fact, had only 
just left the early supply there. It is important to re- 
member this, that the woman did not know the dog, but the 
latter knew her, and she attached herself to the woman, and 
refused to leave her all day, in spite of every effort made to 
get rid of the wanderer. Neither would she accept any food. 
She thus persistently accompanied the woman until the time 
for the evening delivery, evidently knowing that she would 
eventually be taken to her home, if she remained with the 
person who was in the habit of going there. On arriving at 
her home with the milkwoman, at 5 p.m., who described how 
she had been followed closely by the dog throughout the 
day, the puppy received a rapturous welcome, and, after 
taking a biscuit and a little water, slept for fifteen con- 
secutive hours.” 
Now, here, it may be observed, the only link between the 
known and the unknown was the milkwoman. Had the dog 
left her a few moments before she arrived at the house, 
probably no mention would have been made of the circum- 
stance, because the woman did not know to whom the 
wanderer belonged. Had this link been dropped from the 
chain of evidence, the return of the dog would have been 
attributed to “instinct”; whereas it was clearly due to 
reflection—a mental calculation of the probability that the 
woman would revisit the house at the accustomed hour. No 
human being, supposing such a one incapable of making 
