MEMOIR OP WERNER. 
35 
tliors, who have so carefully described the different 
states in which minerals exist ; and for those inde- 
fatigable observers who have removed from the globe 
the last veil that concealed her mysteries. Karsten 
and Wiedeman in the cabinet — Humboldt, Von 
Buch, Daubuisson, Hermann, and Freyensleben, on 
the summit of the Cordilleras, amidst the flames of 
Vesuvius and iEtna, in the deserts of Siberia, in the 
deepest recesses of the mines of Saxony, of Hun- 
gary, of Mexico, and of Potosi — have been led on 
by the spirit of their master. They always ascribed 
to him the honour that resulted from their labours ; 
and it might be said of him, what could formerly bo 
said with truth of Linnaeus only, that Nature was 
every where interrogated in his name. 
Few masters have enjoyed in the same degree the 
pure and unreserved gratitude of their scholars ; but 
no one, perhaps, had ever so much deserved it by his 
paternal regard for them. There was no sacrifice 
which he would not make for his pupils. His time 
and strength were at their service ; and if he knew of 
any of them in temporary need, his purse was opened 
to supply their wants. When his audience became 
too numerous for each to see conveniently the ob- 
jects which he exhibited, he divided the students, 
and repeated the lecture. His door was at all times 
open to them : he took his meals usually with some 
of them in company, as if he had wished that no 
opportunity should be lost for their instruction. 
Such a master might well entrust the care of his 
