, and Lilley, 1819.
Ericsson's air-engine (1855).
Ericsson patented improvements in air-engines in 1851, 1855, 1856, 1858, and 1860.
The following affords an example of one of his engines.
Ericsson, specification patent of July 31, 1855, dbruary 7 and 14, 1865.
According to some analyses, wootz (East Indian steel) is alloyed with aluminium.
Lancaster's (1858, England) gun-metal : copper, 90; aluminium, 100.
Leather tanned by a composition of alum and salt.
om the Guardarama Mountains.
This work was constructed under the superintendence of Don Lucio del Valle, between 1851 and 1858, and is 47 miles in length.
The river gorge is crossed by a cut-stone dam, 98 feet in hight, its wings abutting upon the the process of baking.
9. As an anti-friction composition for journalbearings, pistons, etc.
British patent, 2048 of 1858.Devlin, 1860.
Peters, 1862.Devlin, 1865.
Botticher: with soapstone and cotton,1864.
Kelly: with graphite and iron-filin
g.Swett,Oct. 23,1866; reissued May 7, ‘72.
Westminster ( Big Ben, 1858）30,324
London (Houses of Parliament)30,000
Paris (Notre Dame, 1680）28,6728.67 1/2
Montreal (1847）28,5608.68 1/4
New York (City Hall）23,0008.6 1/re found in the excavations of Pompeii, partially buried A. D. 79.
Bread was made with yeast by the English bakers in 1634.
Was made by machinery in England in 1858.
Was artificially inflated with carbonic-acid gas, with which the water of mixing was impregnated, by Dr. Dauglish, in 1859.
Aerated bread was made in the