INTKODUCTION. 
wonder and admire ; but, urged onward, he attempts to trace back effects to their causes ; he 
investigates, he discriminates, he analyzes, he combines, and, still proceeding in his course, en- 
deavors to obtain a glimpse — imperfect it may be — of the mighty plan of creation, — a knowledge 
of the grand scheme, by which the whole is blended into unity. 
GARDEN OF plants: THE "susBiiT," AND VIEW OP PAEis. — (Seep. 6.) 
" So various and manifold are the subjects of Nature's empire, that, were the life of one man, 
ho"wever zealous and indefatigable he might be, lengthened out twenty, nay, a hundred times 
beyond the aUotted term, his materials would be unexhausted ; he would still have much to study, 
and, after all, leave a systema natures to be enlarged and corrected by those who should come 
