154 THE BOTANISTS OF PHILADELPHIA. 



country. Nuttall, turning his early trade to account, set 

 the type for the greater part of the book. 



In 1817 Mr. Nuttall, already a Fellow of the Linnsean 

 Society of London, was elected a corresponding member of 

 the Academy of Natural Sciences of Philadelphia, and a 

 member of the American Philosophical Society. One of his 

 earliest papers in the Journal of the Academy being a 

 description of Collinsia, a new genus of plants, named in 

 honor of his friend and patron, Zaccheus Collins. 



Nuttall wished to visit the Arkansas country, and 

 soon after his " American Plants " was published, Messrs. 

 Correa da Serra,* Z. Collins, William Maclure and John 

 Vaughan, secured the funds necessary for this long journey. 

 Leaving Philadelphia on October 2, 1818, he reached the 

 mouth of the Arkansas River about the middle of January, 

 and Fort Bellepoint on April 24th. He returned with 

 abundant collections. 



On returning to Philadelphia early in the spring of 1820, 

 he immediately began the study of his Arkansas collections, 

 preparing an account of his journey into the interior of 

 Arkansas in 1818 and 1819, which he published in the 

 following year. He contributed several memoirs to the 

 Journal of the Academy of Natural Sciences (1820-1822), 

 among them being one " On the Serpentine Rocks of 

 Hoboken and the Minerals which they Contain " — for he 

 was a mineralogist as well as botanist. He also lectvired on 



* CoBREA DA Sebra (Jos6 Francisco), born at Serpa, Portugal, in 1751. At 

 the time of the reunion of the Academy of Sciences of Lisbon he was made perpetual 

 secretary (1779). After a rather checkered career in France and Portugal, he lived as 

 a refugee in London, where he published a number of important botanical papers. 

 In 1813 he took a voyage to the United States ; then was named Ambassador of 

 Portugal to the United States. He died in 1823. See Baillon, Dictionaire de 

 Botanique, from which this sketch is taken. A painting of him is in the library of 

 the American Philosophical Society. 



