It was my intention^ ere thiSj to have published the 

 companion volume on the Pear, but circumstances have 

 always arisen to prevent me. Perhaps it is as well it has been 

 so, for it has enabled me to get together a far greater mass of 

 information than I formerly had at command ; and my large 

 collection of the new Belgian Pears has since come into 

 bearing, and enabled me to add; very considerably to what 

 I originally intended to publish. If spared, it is my inten- 

 tion to carry out this portion of the work with as little delay 

 as possible. 



ROBERT HOGG. 

 March 25th, 1859. 



