UNDERWOOD: FERNS OF THE PHILIPPINES 683 
latter island through the discoveries of Bishop Hose open up a 
series of interesting distributional problems relative to the southern 
islands of the Philippine group which have never yet been ex- 
plored botanically. It is hoped that some American residents in 
the Philippines will become interested in the ferns of the islands 
and make extended studies of their interesting pteridophyte flora. 
We shall be only too glad to render any assistance in specific 
identification that may be sought in the hope that our knowledge 
of the fern flora of this prolific region may be thereby extended. 
CoLUMBIA UNIVERSITY, I November, 1903. 
Since the above article was in print I have learned of the publication of a paper 
by Mr. E. D. Merrill on the botanical work already accomplished in the Philippines, 
said also to give an account of the existing herbaria in the archipelago.—L. M. U, 
