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ada, various of the States, Mexico, the West Indies, par- 
ticularly Cuba, Jamaica, and Porto Rico, and South 
America. 
Miscellaneous specimens received for the Columbia 
University herbarium were mounted and incorporated in 
that series. 
Considerable time was devoted to repairing some of the 
older specimens and to more securely mounting many 
previously mounted specimens that were needed for special 
study. Much attention was devoted to the remounting 
and rearranging of the collection of lichens and parts of the 
collection of fungi. 
Investigations and Assistance 
Dr. P. A. Rydberg, Curator, had charge of the collection 
of flowering plants. His monographic work for North 
American Flora was continued. The third part of the 
family Carduaceae was completed and has gone through the 
press. Work on the fourth part is in progress. Mono- 
graphic work on the family Fabaceae, begun last year, 
resulted in the completion of manuscript more than suf- 
ficient for one part of the Flora. Dr. Rydberg also devoted 
some attention to the flora of the Rocky Mountains. Two 
papers were published during the year: viz. ‘‘Life Zones in 
the Rocky Mountains,” in the Memoirs of the New York 
Botanical Garden, and ‘“‘Phytogeographic Notes on the 
Rocky Mountain Region—VI.,” in the Bulletin of the 
Torrey Botanical Club. Two other papers were written 
and will be issued early next year. In connection with 
monographic work for the North American Flora, Dr. 
Rydberg spent two weeks in study at the United States 
National Herbarium. 
Dr. Marshall A. Howe, Curator, remained in charge of 
the collections of algae and hepaticae. Valuable additions 
to the stock of microtome sections of calcareous algae, 
sections that are most useful and necessary in critical studies 
of these plants, were made. Dr. Howe edited volume 6 of 
