The Crocus is constantly influenced by atmos-pheric changes, and may also be acted upon in a si-milar manner by artificial means. The followingresults arose out of experiments to which we submit-ted the yellow crocus in the spring of last year.

The flowers having been gathered at night, whentheir corollas were perfectly closed, were placed atthe distance of nearly a yard from two lighted can-dles, and in a temperature of 50 degrees of Fahren-heit’s thermometer. In this situation and warmth,they remained two hours; but their petals remainednearly closed.

Other flowers were gathered at the same time, andbeing entirely excluded from light, were submittedto a warmth of 95 degrees; the temperature beingvery gradually raised from 65. Their continuance,during two hours, in this situation, occasioned butvery little change in them.

Others were also gathered, and placed betweentwo lighted candles, at about four inches from each,and in a temperature of 70 to 75 degrees. Theseflowers, in rather less than an hour, were as fullyexpanded as in the midday sun.

We notice these little experiments, not for theirvalue, but that such of our young readers as possessopportunity, may be induced to pursue these re-searches to a greater length. In such an unboundedextent of divine wisdom and wonder as the vege-table world exhibits, almost every thing remains tobe discovered. Though trifling our efforts at thecommencement, they may lead to important results;and no one should lose an opportunity of exploringthe wonders that surround him.

Ilort. Kew. 2, v. 1, 81.