PUBLICATION OF EESULTS OF EXPEDITION TO AMERICA. 19 



graphic des Melastomes et d'autres genres du meme ordre' 

 (two volumes, with 120 coloured plates, Paris, 180(5-1823, 

 large folio). 3. Nova genera et species plantarum, quas in 

 peregrinatione ad plagam aequinoctialem orbis novi collegerunt, 

 descripserunt, partim adumbraverunt A. Bonpland et A. de 

 Humboldt, in ordinem digessit C. S. Kunth ' (seven volumes 

 with 700 engravings, Paris, 1815-1825, in folio ; also in four 

 octavo volumes in the form of an abstract or synoptic summary). 

 4. c Monographic des Mimosees et autres Plantes legumineuses 

 du Nouveau Continent, redigee par C. S. Kunth ' (with sixty 

 coloured engravings, Paris, 1819-1824, large folio). 5. 

 'Kevision des Graminees publiees dans les Nova genera et 

 species plantarum de MM. Humboldt et Bonpland, precedee 

 d'un travail sur cette famille par C. S. Kunth ' (with 220 

 coloured engravings, Paris, 1829-1834, large folio). 6. ' Synop- 

 sis plantarum, quas in itinere ad plagam sequinoctialem orbis 

 novi collegerunt A. de Humboldt et A. Bonpland, auctore C. S. 

 Kunth ' (four volumes, Strasburg and Paris, 1822-1826, 8vo.). 

 In the editorship of the sixth part, Humboldt availed him- 

 self of the co-operation of Bonpland and Kunth. The first 

 two works are edited by Bonpland, and the remainder by 

 Kunth, and the only production among them from Humboldt's 

 pen is an introduction to the 'Nova genera,' which was 

 published in a separate form, under the title ' De distributione 

 geographica plantarum secundum coeli temperiem et altitudi- 

 nem montium prolegomena' (Paris, 1817, published in German 

 .by Beilschmidt, Breslau, 1831). 



In the midst of these arduous undertakings, Humboldt yet 

 found time to bring out several treatises on subjects kindred to 

 the larger works, some of which appeared in various periodicals, 

 while others were published in a separate form. 



Humboldt's publishers in Paris were, at one time, the firm of 

 .Scholl, Gride, Dufour & Maze, at another time Gride alone, 

 then Fuchs, subsequently Gride fils, Gride & Baudry, and 

 Levrault ; in one letter the name of Smith occurs in this con- 

 nection. In Germany his principal publisher was Gotta. There 

 are many allusions in Humboldt's letters to Gride, Scholl, 

 .and Cotta, which show that his relationships with them were of 



c 2 



