610 The Trees of Great Britain and Ireland 
which are made from it, and stated that he had a young tree at Kensington which 
was seven feet high when only five years old from the seed. Mayr also thinks that 
the hickory might have some economic value in the warmer parts of Germany, as it 
has stood the hardest frosts at Munich without injury. But so far as we know, none 
of the trials which have been made in France, where the tree was introduced on 
a large scale by Michaux 100 years ago, have been successful, and I could not hear 
that any of the trees which he planted near Paris are now alive. (H. J. E.) 
