Staple Dietary Ingredients Secured | My Web Site Page 331 Chapter 02 Page 06

Ovations

Sitemaps

Having thus briefly looked at the advantages of circulation of water in steam boilers, let us see what are the best means of securing it under the most efficient conditions We have seen in our kettle that one essential point was that the currents should be kept from interfering with each other. If we could look into an ordinary return tubular boiler when steaming, we should see a curious commotion of currents rushing hither and thither, and shifting continually as one or the other contending force gained a momentary mastery. The principal upward currents would be found at the two ends, one over the fire and the other over the first foot or so of the tubes. Between these, the downward currents struggle against the rising currents of steam and water. At a sudden demand for steam, or on the lifting of the safety valve, the pressure being slightly reduced, the water jumps up in jets at every portion of the surface, being lifted by the sudden generation of steam throughout the body of water. You have seen the effect of this sudden generation of steam in the well-known experiment with a Florence flask, to which a cold application is made while boiling water under pressure is within. You have also witnessed the geyser-like action when water is boiled in a test tube held vertically over a lamp (Fig. 3).

It was not to be expected that so pushing a woman as Mrs. Chapman would be turned from the object she had set her heart on by the interposition of ordinary obstacles. She had taken good care to have the engagement pretty well trumpeted over Bowling Green; and in less than three months from the time what is described in the foregoing chapter occurred, the lady had a day fixed for the wedding ceremony, which, she declared should be on such a scale of magnificence as would astonish all New York, to say nothing of West Bowling Green. And now she was distracting her wits, and the wits of her friends, over what she called the preliminaries extraordinary. Weddings, the lady said, must be illuminated according to the position of the family. And to that end an additional amount of elegant furniture was got for the house, a new carriage was ordered, and Mr. Napoleon Bowles was to appear in a new livery, with top boots. Nor was the family finery to be neglected, for at least a dozen dressmakers had been employed for a month plying their needles. In short, this great coming event in the history of the Chapman family had afforded Bowling Green enough to talk about for a month.

In so far as this is a process of growth, accompanied by the assumption of a definite form, it might be compared with the growth of a crystal of salt in brine: but, on closer examination, it turns out to be something very different. For the crystal of salt grows by taking to itself the salt contained in the brine, which is added to its exterior; whereas the plant grows by addition to its interior: and there is not a trace of the characteristic compounds of the plant's body, albumin, gluten, starch, or cellulose, or fat, in the soil, or in the water, or in the air.

This page is Copyright © Formidable Quad. All Rights Reserved. Staple Dietary Ingredients Secured | My Web Site Page 331 is a production of Formidable Quad and may not be reproduced electronically or graphically for commercial uses. Personal reproductions and browser or search engine caching are acceptable.

Ovations provided by Staple Dietary Ingredients Secured | My Web Site Page 331 are included only for information. The entertainment value of Staple Dietary Ingredients Secured | My Web Site Page 331's ovations may vary on the basis of your personal needs. Formidable Quad and Staple Dietary Ingredients Secured | My Web Site Page 331 take no responsibility for the content provided by other Web sites. Links are provided "as is" without liability or warranty.