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Popular Books on Natural Science For Practical Use in Every Household, for Readers of All Classes   By:

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First Page:

E text prepared by Jonathan Ingram, Anna Hall, and the Online Distributed Proofreading Team (http://www.pgdp.net) from page images generously made available by Internet Archive/American Libraries (http://www.archive.org/details/americana)

Note: Images of the original pages are available through Internet Archive/American Libraries. See http://www.archive.org/details/popularbooksonna00bernrich

Transcriber's note:

There is an error in the calculation on page 16 (in the paragraph beginning, "Hence, it is through the movement of the mirror that the time, which is necessary for electricity to go through the circuit of the wire . . ."). I have left the calculation as it was printed.

Inconsistent hyphenation has been left as printed.

POPULAR BOOKS ON NATURAL SCIENCE.

For Practical Use in Every Household, For Readers of All Classes.

by

A. BERNSTEIN.

CONTENTS:

THE WEIGHT OF THE EARTH VELOCITY NUTRITION LIGHT AND DISTANCE THE WONDERS OF ASTRONOMY METEOROLOGY THE FOOD PROPER FOR MAN.

New York: Chr. Schmidt, Publisher, 39 Centre Street.

Entered, according to Act of Congress, in the year 1869, by Chr. Schmidt, In the Clerk's Office of the District Court of the United States, for the Southern District of New York.

BERNSTEIN'S POPULAR TREATISE ON NATURAL SCIENCE.

"In primis, hominis est propria VERI inquisitio atque investigatio. Itaque cum sumus negotiis necessariis, curisque vacui, tum avemus aliquid videre, audire, ac dicere, cognitionemque rerum, aut occultarum aut admirabilium, ad benè beatéque vivendum necessariam ducimus; ex quo intelligitur, quod VERUM, simplex, sincerumqe sit, id esse naturæ hominis aptissimum. Huic veri videndi cupiditati adjuncta est appetitio quædam principatûs, ut nemini parere animus benè a naturâ, informatus velit, nisi præcipienti, aut docenti, aut utilitatis causâ justè et legitimè imperanti: ex quo animi magnitudo existit, et humanarum rerum contemtio."

Cicero, de Officiis, Lib. 1. § 13.

Before all other things, man is distinguished by his pursuit and investigation of TRUTH. And hence, when free from needful business and cares, we delight to see, to hear, and to communicate, and consider a knowledge of many admirable and abstruse things necessary to the good conduct and happiness of our lives: whence it is clear that whatsoever is TRUE, simple, and direct, the same is most congenial to our nature as men. Closely allied with this earnest longing to see and know the truth, is a kind of dignified and princely sentiment which forbids a mind, naturally well constituted, to submit its faculties to any but those who announce it in precept or in doctrine, or to yield obedience to any orders but such as are at once just, lawful, and founded on utility. From this source spring greatness of mind and contempt of worldly advantages and troubles.

CONTENTS.

PART I.

THE WEIGHT OF THE EARTH.

CHAPTER. PAGE.

I. How many pounds the whole earth weighs. 3

II. The attempt to weigh the earth. 5

III. Description of the experiment to weigh the earth. 8

PART II.

VELOCITY.

I. Velocities of the forces of nature. 13

II. How can the velocity of the electric current be ascertained. 15

PART III.

NUTRITION.

I. Nothing but milk. 21

II. Man the transformed food. 24

III. What strange food we eat. 26

IV. How nature prepares our food. 29

V. What becomes of the mother's milk after it has entered the body of the child. 32

VI. How the blood becomes the vital part of the body. 35

VII... Continue reading book >>




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