Encyclopaedia Americana; A Popular Dictionary of Arts, Sciences, Literature, History, Politics and Biography Volume 10 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1851 edition. Excerpt: ...are as till lows: --It is found ready formed strength; it is then carried to the oiler. in the East Indies, in Spain, ill the king-It contains nitre and other salts, the prindom of Naples; and it abounds in the cipal one of which is common salt. It is limestone caves of the western and south-the property of nitre to be much more Wi stern states of our country, in which soluble in hot than in cold water, as has last-mentioned situations it is rarely found been seen aliove; but common salt is very ready formed, but is obtained from theni-nearly as soluble in cold as in hot water, time" of rime, which is changed to nitre Whenever, therefore, the evaporation is by being mingled with wood-ashes, and carried by boiling to a certain point, much leached, far the greater part of the ni-of the common salt will fall to the bottratc made use of is produced by a com-torn, for want of water to hold it in solubination of circumstances, which tend to tion, though the nitre will remain susconrpose and condense nitric acid. This pended by virtue of the heat. The comae: I appears to be produced in all situa-mou salt thus separated is taken out with where animal matters are complete-a perforated ladle; and a small quantity of ly decomposed with access of air, and of the fluid is cooled, from time to time, thai proper substances with which it can read-its concentration may be known by the niilv combine. Ground frequently trodden tre wliich crystallizes in it. When the by cattle, and impregnated with their ex-fluid is sufficiently evaporated, it is taken ereiuent, or the walls of inhabited places, out and cooled, and a great part of the niwhere putrid animal vaiors abound, such tre separates in crystals, while the remainas slaughter-houses, drains, or the...