246 SYLVA FLORIFERA. 



are at Woburn Abbey, in Bedfordshire, the 

 seat of His Grace the Duke of Bedford. It 

 requires a sheltered situation and a good deep 

 soil. The leaves are coloured, like those of 

 the silver fir, but wider and blunter, and 

 disposed on each side along the branches 

 like the teeth of a comb ; but in a double 

 row, the upper one shorter than the under. 

 Underneath, they are marked with a double 

 glaucous line, and each has eight rows of 

 white dots. The cones of this fir are small 

 and of a roundish shape. 



The hemlock fir, pinus Canadensis, is also a 

 native of North America. It was first intro- 

 duced into English pleasure-grounds by Peter 

 Collinson, Esq., in the year 1736. It is a 

 beautiful but delicate tree, requiring a good 

 soil and a warm sheltered situation. Mr. 

 Boucher says, it would be improved by 

 tying its leading shoot to a stake annually as 

 it advances. It is not found to thrive well in 

 any part of England, nor in many parts of 

 America; though, in other parts of that 

 continent, it grows to be a very large tree. 



