were made from drawings and field notes only, and the types of 



of great interest not seen elsewhere. I also arranged with Pro- 

 fessor Johannsen and Dr. Osfenfeld, at the latter's suggestion, 

 to work over certain mycological collections recently made in 

 the Danish West Indies. The museum is much too small for 

 the large collections it contains, among them Professor Warm- 

 ing's Brazilian plants and an Arctic collection surpassing that 

 of any other institution. The botanical garden is interestingly 



situated on the old fortifications of the city, but, being within the 

 city limits, it suffers considerably from smoke. Professor Warm- 

 ing, the director, was, to my regret, absent from the city at the 



My next stop was at Leiden, in Holland, to see the Persoon 

 herbarium. This herbarium was stored for a long time in old 

 cupboards, and the few who saw it gained the impression that it 



