George Engelmann. XV 



Endlich sind noch zu erwähnen die Bearbeitungen ganzer Samm- 

 lungen, von welchen er die eine: Plantae Lindheimerianae (I. a. 1845, 

 11. a. 1847) mit Asa Gray zusammen, die andere in Wisltzenus' 

 Memoir of a Tour to Northern Mexico a. 1848 allein herausgab. 



Als Kritik der ENGELMANN'schen Arbeiten mögen hier zum Schluss 

 die Worte seines Freundes und kompetentesten Beurtheilers Asa Gray 

 eingefügt werden: „Nothing escaped his attention; he drew with facility; 

 and he methodically secured bis observations by notes and sketches, 

 available for his own after use and for that of his correspondents. But 

 the lasting impression which he has made upon North American bo- 

 tany is due to his wise habit of studying his subjects in their syste- 

 matic relations, and of devoting himself to a particular genus or group 

 of plants (generally the more difficult) until he had elucidated it as 

 completely as lay within his power. In this way all his werk was made 

 to teil effectively." 



