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ANIMAL INTELLIGENCE. 
could not be interfered with, and fight out their quarrel on the 
other side. What seems to me noteworthy in this conduct is 
the self-restraint manifested under the influence of passion , and 
the mutual understanding to defer the fight tijl they could pro- 
secute it unmolested ; like two duellists crossing the Channel to 
fight in France. 
It is, of course, a well-known thing that dogs may 
easily be taught the use of coin for buying buns, &c. 
In the 6 Scottish Naturalist’ for April, 1881, Mr. Japp 
vouches for the fact that a collie which he knew was in 
the habit of purchasing cakes with coppers without ever 
having been taught the use of coin for such purposes. 
This fact, however, of a dog spontaneously divining 
the use of money requires corroboration, although it 
is certain that many dogs have an instinctive idea of 
giving peace-offerings, and the step from this to the 
idea of barter may not be large. Thus, to give only two 
illustrations, Mr. Badcock writes to me that a friend of his 
had a dog which one day had a quarrel with a companion 
dog, so that they parted at variance. 6 On the next day 
the friend appeared with a biscuit, which he presented as 
a peace-offering. 7 Again, Mr. Thomas D. Smeaton writes 
to me of his dog that he 6 has an amusing practice when 
he is restored to favour after some slight offence, of im- 
mediately picking up and carrying anything that is 
handiest, stone, stick, paper : it is a deliberate effort to 
please, a sort of good-will offering, a shaking hands over 
the past. 7 
I am indebted for the following to Mr. Cfoodbehere, of 
Birmingham ; it may be taken as typical of many similar 
cases : — 
My friend (Mr. James Canning, of Birmingham) was ac- 
quainted with a small mongrel dog who on being presented 
with a penny or a halfpenny would run with it in his mouth to 
a baker’s, jump on to the top of the half-door leading into the 
shop, and ring the bell behind the door until the baker came for- 
ward and gave him a bun or a biscuit in exchange for the coin. 
The dog would accept any small biscuit for a halfpenny, but no- 
thing less than a bun would satisfy him for a penny. On one 
occasion the baker (being annoyed at the dog’s too frequent 
visits), after receiving the coin, refused to give the dog any 
