THE FLORA OF NORTH AMERICA. 19 



he was a contemporary of Vahl's. He made several journeys to 

 different parts of the West Indian islands and to Surinam and 

 Brazil. He corresponded with and sent numerous specimens to 

 Vahl. 



Jalius Philip Benjamin "hon Rohr, an officer of the garrison 

 of the Danish West Indies, served from 1757 as civil engineer, and 

 from 1765 as superintendent of constructions at the government 

 buildings and forts. In 1787 — '91 he made a series of journeys in 

 the interests of cotton culture, and died as lieutenant colonel in 

 1793, on a journey from North America to Guinea. He was an 

 ardent collector, and described 8 new genera of plants from St. 

 Croix, Montserrat, Guadeloupe, and Martinique. His collections 

 were afterwards elaborated b^^ Yahl. At least one publication is 

 from his hand: 



Plante-Slipgter med tilfoiede AnmaBrkninger af Hi- Professor Vahl, 1792. 



Hans West was born in 1758 at Mesinge, on Hindsholm, Fyen, 

 Denmark. In 1788—1800 he was the president of the school 

 at Christianssted on St. Croix. In 1802 he was appointed minis- 

 ter to Holland, and died at Cassel, returning from a journey to 

 France 1811. He made in the Danish AVest Indies and Porto Rico 

 extensive collections, which were sent to Vahl. He published the 

 following, a work of 363 pages: 



Bidi-as til Beskrivelse over Ste. Croix, med en kort Ddsigt over St. Tliomas, 

 St. Jean, Tortola, Spanislitown og Crabeneiland, 1793. [.Several new species are 

 there published] . 



Martin Vahl was born at Bergen, Norway, the 10th of Octo- 

 ber, 1749. He became lector at the Botanical Garden at Copen- 

 hagen in 1779; director of the Botanical Garden in 1800; profes- 

 at the university in 1801, and died the 24th of December, 1804. 

 He studied under Linnteus in 1769— '75, and edited Flora Danica, 

 Vols. 6 and 7, in 1787 — 1803. He was specially' interested in the 

 flora of the West Indies. The pla,nts he described were collected by 

 von Rohr at St. Croix, Monserrat, Guadeloupe, and Martinique; bj- 

 Dr. Rj'an at Monserrat, St. Croix, and St. John; by Hans West on 

 the Danish AVest Indies; by Mertfelt on Guadeloupe, and Dr. Pflug 

 on St. Croix. 



The following, referring to American plants, are from him: 



Flora Danica, Vols. 6 and 7, 1787—1803. 



Eclogii' AnierieaniB, 1796 — 1807. 



En deel Kryptogamiske Planter fra St. Croix, 1802. 



