THE FLORA OF NORTH AMERICA. 33 



tion to the diatoms, desmids and other fresh water algiv. He 

 partook in a geological journey in 1868 — '69 to North America 

 and the West Indies. 



Diatoms from the AYest Indian Archipelago, 1878. 



Diatoms collected during- the expedition of the Vega. 



Parskvattens diatomaeeer frSn Gronland och Argentinska Republiken, 1881. 



On the diatoms collected during the Arctic expedition of Sir George Nares, 

 1883. 



Diatoms from Baffins Bay and Davis Strait, 1896. 



Synopsis of the Naviculoid Diatoms, 1894. 



Johan August Berlin was born at Malsta, Upland, Sweden, 

 the 7th of August, 1851, received his degree of Ph. D. in 1888. 

 He was the botanist of the Xordenskjold expedition to Greenland 

 in 1883. 



Karlvaster, insamlade under den svenska expeditionen till Gronland 1883, 

 1884. 



cAlfred Gabriel Naihhorsi was born at V'aderbrunn, Soder- 

 manland, vSweden, the 7th of November, 1850, took the degree of 

 Ph. D. in 1874, and became decent the same year. He became 

 professor and director of the Paleophytological Museum, Stock- 

 holm, in 1884. He has made journeys to Spitzbergen in 1870, 

 1882 and 1898, to Greenland (with Nordenskjold) in 1883, and to 

 East Greenland in 1899. He is a prominent paleontologist and 

 phytogeographer. 



Botaniska anteckningar frftn nordvastra Gronland, 1884-. 



Forssatta anmarkningar om den gronlandska vegetationens historia, 1891. 



Tv& somrar i Norra Ishafvet. 



Johan Georg Robert 'Botdt was born at Kuopio, Finland, the 

 3rd of Januarj-, 1861, took his Ph. D. examinations in 1891, 

 and has been instructor of geography and history at Bjorneborg 

 since 1899. He is a specialist on algte, especially the desmids. 



Desmider fr^n Gronland, 1888. 



C. West Indies. 



Albert Heinrich "iZ^rVse was born the 11th of September, 1810, 

 on Aero, Denmark. He became apothecary on the island of St. 

 Thomas, where he remained until 1870. He died the 18th of 

 October, 1882. He made important collections, which are pre- 

 served at Copenhagen. 



