Chemical Works. Of 
logic ; and he has left us some of the noblest examples of the efficacy 
of that great instrument of human reason in the discovery of truth. 
He applied it, not only to connect classes of facts of more limited 
extent and importance, but to develope great and comprehensive 
laws, which embrace phenomena, that are almost universal to the 
natural world. In explaining those laws, he cast upon them the illu- 
mination of his own clear and vivid conceptions ;—he felt an intense 
admiration of the beauty, order, and harmony, which are conspicu- 
ous in the perfect Cuzmistry or Nature ;—and he expressed those 
feelings with a force of eloquence which could issue only from a mind 
of the highest powers, and of the finest sensibilities. With much less 
enthusiasm from temperament, Dr. Wollaston was endowed with bodi- 
senses of extraordinary acuteness and accuracy, and with great gen- 
eral vigor of understanding. Trained in the discipline of the exact 
sciences, he had acquired a powerful command over his attention, 
nd had habituated himself to the most rigid correctness, ‘both of 
thought and of language. He was sufficiently provided with the re- 
sources of the mathematics, to be enabled to pursue, with success, 
profound enquiries in mechanical and optical philosophy, the results 
of which enabled him to unfold the causes of phenomena, not before 
understood, and to enrich the arts, connected with those sciences, by 
the invention of ingenious and valuable instruments. In CuemistRy, 
Was distinguished by the extreme nicety and delicacy of his ob- 
servations ; by the quickness and precision, with which he marked 
resemblances and discriminated differences; the sagacity with which 
he devised experiments, and anticipated their results; and the skill, 
with which he executed the analysis of fragments of new substances, 
often so minute as to be scarcely perceptible by ordinary eyes. He 
Was remarkable, too, for the caution, with which he advanced from 
'S to general conclusions; a caution which, if it sometimes pre- 
vented him from reaching at once to the most sublime truths, yet 
rendered every step of his ascent a secure station, from which it was 
“asy to rise to higher and more enlarged inductions. Thus these il- 
lustrious men, though differing essentially in their natural powers and 
acquired habits, and moving, independently of each other, in different 
Paths, contributed to accomplish the same great ends—the evolving of 
new elements; the combining of matter into new forms; the increase 
of human happiness by the improvement of the arts of civilized life ; 
and the establishment of general laws, that will serve to guide other 
Philosophers onwards, through vast and unexplored regions of scien- 
: 
tifie discovery 
. 
