THE FLORA OF NORTH AMERICA. 27 
Henrik Johannes Rink, who was born in Copenhagen the 26th 
of August, 1819, received his degree of Ph. D.in 1844, made a 
journey around the world in 1845—’47, one to northern Greenland 
in 1848—’51, and another to southern Greenland in 1852—’68. 
Dr. Rink was governor of the colonies at Julienhaab and Godt- 
haab in 1853, became general inspector of South Greenland in 
1858—’68, and one of the three directors of the government ex- 
plorations of Greenland in 1871—’82. He died at Christiania in 
1893. He published contributions as follows: 
Grénland, geographisk og statistisk beskrevet, 1852—’57. [Natural history 
contributions to this were made we J. Reinhart, J.C. Schiddte, O. A. L. Mérch, C. 
Luetken, and J. Lange (See belo 
Greenland, 1877. [The eotaieal aceount in this was by R. Brown (Campst.) 
and J. Lange.] 
Salomon Thomas Nicolai Drefer was born at Eveldrup, Viborg, 
Denmark, the 15th of February, 1813, became docent at the 
university in 1839, and died at Copenhagen the 21st of April, 1842. 
He was an acknowledged authority on sedges, especially the genus 
Carex. , He described numerous new species of this genus, of which 
not a few are found in America. The most important work from 
his hand is 
Revisio critica Caricum borealium in terris sub imperio Danico jacentibus in- 
ventarum, 1841. 
In 1870 and 1871 two Swedish expeditions were made to 
Greenland under Prof. Nordenskiéld. The botanist of the first 
expedition was S. Berggren; of the second, T. E. Fries. 
Sven Berggren was born at Hr, Skane, Sweden, the 12th of 
August, 1837, received his Ph. D. degree in 1865, became docent 
in 1866, extra ordinary professor at Upsala in 1881, and profes- 
sor at Lund in 1898. He made a journey to Spitzbergen in 1868, 
to Greenland in 1870, and to New Zealand in 1874—’75. The fol- 
lowing contributions are from his hand: 
Alger fran Grénlands inlandsis, 1871. : 
Férteckning Sfver karlviixter och mossor fran Grénlands-expeditionen 1870, 
Bidrag till kannedom om een BC - vid Disko-bugten och Auleitsivik- 
fjorden pA Grénlands vastkust, 1872. 
Unders6kning af mossfloran vid Disko-bukten etc., 1875. 
Theodor Magnus Fries, son of Elias Fries, was born at Femsj6, 
SmAland, Sweden, the 28th of October, 1832, received his Ph. D. 
degree in 1857, became docent the same year, was professor at 
