355 431 
Concluding remarks. 
The “Flora of Koh Chang”, publication of which was commenced 
in the year 1900 (with Part I), is now, with the present issue of 
Part X, brought to a close. 
The first eight parts appeared in the course of a few years 
(1900—1904), after which, however, five years elapsed hefore the 
issue of Part [X, and a further period of years before the present 
concluding part was ready for print. This delay, due to circum- 
stances beyond my control, I very much regret. 
Of the botanical collections brought home, all, save for a single 
group, have now been worked up. The exception is that of the 
perforating algz, the investigation of which, entrusted to the care 
of M. Maurice Gomont of Paris, was brought to a standstill upon 
his decease. 
The following botanists have taken part in the work of dealing 
with the collections: 
O. Beccari, Firenze. O. Nordstedt, Lund. 
F. Brotherus, Helsingfors. C. H. Ostenfeld, Copenhagen. 
H. Christ, Bale. Ove Paulsen, Copenhagen. 
Carl Christensen, Copenhagen. fF. Pax, Breslau. 
+C. B. Clarke, Kew. V. A. Poulsen, Copenhagen. 
W.G. Craib, Kew. L. Radlkofer, Munich. 
U. Dammer, Berlin. F. Kélpin Ravn, Copenhagen. 
A. Engler, Berlin. Th. Reinbold, Itzehoe. 
+M. Foslie, Trondhjem. +E. Rostrup, Copenhagen. 
E. Gilg, Berlin. R. Schlechter, Berlin. 
+M. Gomont, Paris. +K. Schumann, Berlin. 
BE. Hackel, St. Pélten. O. Stapf, Kew. 
H. Hallier, Leiden. F. Stephani, Leipzig. 
H. Harms, Berlin. Edw. A. Wainio, Helsingfors. 
F. Heim, Paris. O. Warburg, Berlin. 
F. Kranzlin, Berlin. Eug. Warming, Copenhagen. 
G. Massee, Kew. G. S. West, Birmingham. 
Carl Mez, Halle. + W. West, Bradford. 
E. Ostrup, Copenhagen. 
