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A History of Magic and Experimental Science, Volume 2 (of 2)
by Lynn ThorndikeThus Physica is more inclusive than the modern science of Physics, while Hugh evidently does not employ it in the specific sense of the art of medicine, of which the word physica was sometimes used in the medieval period. Hugh goes on to say that Physica is sometimes still more broadly interpreted to designate natural philosophy in contrast to logi..
Illustrations of the Huttonian Theory of the Earth
by John PlayfairA Very little attention to the phenomena of the mineral kingdom, is sufficient to convince us, that the condition of the earth's surface has not been the same at all times that it is at the present moment. When we observe the impressions of plants in the heart of the hardest rocks; when we discover trees converted into flint, and entire beds of lim..
The A.B.-Z. of our own nutrition
by Horace FletcherLuigi Cornaro suggested that all persons in his time ate more than was necessary; most persons ate twice as much as was good for them; and some, who were extravagantly gluttonous, ate ten times as much as was their most economic need; and Cornaro, who was a dissipated wreck at forty, reformed his manner of eating and lived to be a hundred to prove ..
Jackson's Gymnastics for the Fingers and Wrist
by Edwin Ward JacksonThe subject of this little work develops, on anatomical and physiological principles, a system of Gymnastics for the Fingers and Wrist, the object of which is—, to lay a solid and scientific foundation for the acquisition of technical skill in the fingers and wrist, as applied to the playing on musical instruments and to finger-work generally.For a..
A Cyclopædia of Sacred Poetical Quotations
by H. G. AdamsThe favour with which our former compilation—the “Cyclopædia of Poetical Quotations”—was received, and the numerous calls which we had for an extension of the plan of that work, induced us to determine on the issue of this companion volume, which, although exactly similar in size and price, and method of arrangement, yet possesses a decidedly disti..
A Preliminary Dissertation on the Mechanisms of the Heavens
by Mary SomervillePhysical astronomy is the science which compares and identifies the laws of motion observed on earth with the motions that take place in the heavens, and which traces, by an uninterrupted chain of deduction from the great principle that governs the universe, the revolutions and rotations of the planets, and the oscillations of the fluids at their s..
Gilbert Weather Bureau (Meteorology) for Boys
by A. C. GilbertIn the minds of most people a very silly notion prevails about the weather and the weather man. They have a general impression that the weather knows no laws—that it is lawless and reckless, fickle and changeable; that the weather man is a sort of conjurer, and by some mysterious gift he is able to prophesy things that most people know nothing abou..
Determination of the Atomic Weight of Cadmium
by Harry C. JonesThe method of weighing the more or less hygroscopic cadmium sulphate is open to criticism when employed in accurate work. The cadmium sulphate was placed in an open boat, dried, cooled over sulphuric acid, and weighed. It was again dried, cooled as before, and weighed. The second weighing could be quickly accomplished since the approximate weight w..