Scientific amusements . that hewished no other book than the earth andthe sky, and that it was given to all to readthis wonderful is indeed by the study of the material world thatdiscoveries are accomplished. Let an attentive observerwatch a ray of light passing from the air into water, andhe will see it deviate from the straight line by refraction ;let him seek the origin of a sound, and he will discoverthat it results from a shock or a vibration. This isphysical science in its infancy. It is said that Newtonwas led to discover the laws of universal gravitation bybeholding an apple fa
Scientific amusements . that hewished no other book than the earth andthe sky, and that it was given to all to readthis wonderful is indeed by the study of the material world thatdiscoveries are accomplished. Let an attentive observerwatch a ray of light passing from the air into water, andhe will see it deviate from the straight line by refraction ;let him seek the origin of a sound, and he will discoverthat it results from a shock or a vibration. This isphysical science in its infancy. It is said that Newtonwas led to discover the laws of universal gravitation bybeholding an apple fall to the ground, and that Mont-golfier first dreamt of air-balloons while watching fogsfloating in the atmosphere. The idea of the innerchamber of the eye may, in like manner, be developed inthe mind of any observer, who, seated beneath the shadeof a tree, looks fixedly at the round form of the sunthrough the openings in the leaves. THE STUDY OF NATURE. ii<i|iiiii,iii;i „. m I I I I I I ,ll I Ml I I I 4 jii.
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