824 BOTANY, [Oh. XVII 



Joseph Hooker's supervision, the work, carried out with 

 admirable zeal by Mr. Jackson, goes steadily forward. The 

 colossal nature of the undertaking may be estimated by the 

 fact that the manuscript of the Index is at the present time 

 (1892) believed to weigh more than a ton. 



The Kew ' Index,' will be a fitting memorial of my father : 

 and his share in its completion illustrates a part of his cha- 

 racter^ — his ready sympathy with work outside his own lines of 

 investigation — and his respect for minute and patient labour in 

 all branches of science. 



