PREFACE. V 



Forest Service who has most kindly read the proofs of Parts IV, 

 Fand VI and given me many valuable suggestions and criticisms 

 most of which I have been able to give effect to, and to Captain 

 Gage, Director of the Botanical Survey of India, for his kind 

 help and advice. 



10. During the preparation of 



this book, covering as it does the main sub- divisions of the whole 

 science of botany, the number of books referred to has neces- 

 sarily been large and only those to which I am most indebted can 

 be mentioned here. These are : 



(1) The various works of the late Professor H. Marshall 



Ward, for whose inspiring teaching and encourage- 

 ment also the writer takes this opportunity of ex- 

 pressing his deep sense of gratitude. 



(2) Asa Gray's Botanical Text- Book., Volume I. 



(3) Dr. E. Strasburger's Text-Book of Botany. 



(4) A Students' Text-Book of Botany, by S. H. Vines. 

 (5) . Sachs' Lectures on the Physiology of Plants. 



(6) Physiology of Plants, by Dr. W. Pfeffer. 



(7) Species and Varieties, their origin by Mutation, by H. 



de Vries. 



(8) Diseases of Trees, by R. Hartig, Eng. Trans., edited 



by H. Marshall Ward. 



(9) Plant Geography, by Dr. A. F. W. Schimper. 



(10) Brandis' Flora of North- West and Central India. 



(11) Brandis' Indian Trees. 



(12) Gamble's Manual of Indian Timbers. 



(13) Indian Forester. 



(14) Mr. P. H. Clutterbuck's Working Plan for the Forests 



of Jaunsar-Bawar. 



