THE FLORA OF NORTH AMERICA. 49 
Frederik Christian Emil Borgesen was born at Copenhagen, Jan. 
1st., 1866, received his Master’s degree in 1891, and became 
librarian of the Botanical Garden in 1900. He has made several 
journeys in Sweden, Denmark and Norway and has made aspecial- 
ty of the fresh-water algae, especially the Desmids. He made 
two visits to the Danish West Indies, one in 1893, the other in 
1895—6, together with O. Paulsen. Here he studied especially the 
marine algae. He has published the following papers: 
Ferskvandsalger fra Ostgrénland, 1894. 
Om Vegetationen paa de dansk vestindiske Oer [with O. Paulsen], 1898. 
La Vegetation des Antilles Danoises [together with O. Paulsen], 1900, 
Vore vestindiske Oer, 1900. 
A Contribution to the Knowledge of the Marine Algce Vegetation on the Coast 
of the Danish West Indies [also in Danish], 1900. 
Ove Wilhelm Paulsen was born at Aarhus, Denmark, March 
22nd, 1874. He made several shorter journeys in Denmark and 
Norway, and went with Bérgesen to the West Indies in 1895—6. 
In 1897, he received his Master’s degree and in 1898—9 he par- 
took in the expedition to Pamir under Lieutenant Olufsen. He 
became assistant at the Botanical Garden in 1900. Together 
with Bérgesen he published: 
Om Vegetationen paa de Dansk-Vestindiske Oer, 1898. 
Carl Emil Hansen Ostenfeld. (See under Greenland and Arctic 
America, page 47). 
Carl Olav Ernst Hansen was born at Olstycke, near Copenhagen, 
the 7th of June, 1865. He was a gardener by trade; came in 1885 
to the Botanical Garden at Copenhagen; made a journey to 
France in 1888, where he was employed for some time at Jardin 
des Plantes. In 1892 he was offered to go to the West Indies and 
eventually take charge of an Experimental Station which was 
contemplated. He visited Barbadoe, Jamaica, Domingo, and St. 
Lucia, where he studied the botanical gardens and sugar planta- 
tions. He made collections of plants, which he sent to Copen- 
hagen. 
Angust Gustaf Eisen (See United States, page 39). - 
Pehr Hjalmar Olson-Seffer (See United States, page 45). 
