Vi PREFACE. 



Empire with which I am not personally acquainted, the names of 

 the trees have been given as recorded by the local authorities. 



I desire to express my special thanks to my eldest daughter, 

 as well as to my wife, for the assistance they have rendered to me 

 in passing this book through the Press. 



w. schlich. 



Oxford, 



April 2Uh, 1922. 



