Report, Volume 9 |
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50 feet Allegany County ANALYSIS Anne Arundel Anne Arundel County Ashland Baltimore County Bank bar iron blast Bridges carbonate Carroll Catoctin Furnace Cecil County cent clay pipe Clinton coal construction cost Creek Cumberland deposits depth east side Engineer erected Fe SiO2 Federalsburg feet high feet in diameter feet long feet wide ferruginous forge Frederick County Friendsville Garrett County grade Gravel half mile Harford County hematite Highway Division Hill Howard Howard County hundred yards Ignition Iron Company limestone limonite located Lonaconing macadam magnetite manganese MARYLAND GEOLOGICAL SURVEY mile north mile northwest mile south mile southeast miles of road mill mined Mountain Muirkirk nodules northeast occur old opening operated outcrop output Patapsco Patuxent pig iron Plate Prince George's Principio Railroad relay Ridgely River rocks royalty sandstone Savage schist shale southwest Stemmer Run stone surface Sykesville thickness tons Washington
Brani popolari
Pagina 305 - Surgent (Clinton) series are to be regarded as among the permanent constituent strata of the formation, and as having originated with the other sedimentary materials in the form of very extended, but thin, sheets of ferruginous matter, covering at successive epochs the wide floor of the quiet Appalachian sea.
Pagina 141 - ... yard, a store, 320 houses for workmen, etc., • * * * besides iron and coal mines. From the balance sheets of the company, the works appear to have cost $1,600,000. The whole was sold to a company consisting of citizens of Albany, New York, and Boston for a little over $200,000. This company is now busy making arrangements to open, as soon as the price of railroad iron shall be such as to admit of successful competition with the English article. At present the high price of labor In this country...
Pagina 252 - September, 1906, pp. 1 to 176. would be subjected to a transformation into the carbonate. The muds that were being deposited at this time, with which the hydrate mingled, were highly charged with organic matter. Of these sediments Professor Rogers1 says, "the soft argillaceous shales, in the midst of which the lenticular ore so frequently presents itself, show by their dark colour and included impressions of plants, as well as by actual analysis, that they are richly imbued with vegetable matter....
Pagina 251 - ... sandstones, which are often crowded with the impressions and carbonized remains of plants, are at the same time more or less impregnated with this ferruginous compound. So, again, the soft argillaceous shales, in the midst of which the lenticular ore so frequently presents itself, show, by their dark color and included impressions of plants, as well as by actual analysis, that they are richly imbued with vegetable matter. Nor do the nearly white fire-clays, which in many cases enclose thick courses...
Pagina 252 - In this process, which finds a simple explanation in the combined action of infiltration and the segregating force, it can hardly be questioned that the carbonic acid, pervading the mass of sediment, acted a very important part. The large amount of this gas evolved from the beds of vegetable matter, undergoing change, would impart to the water of the adjoining strata the power of dissolving the diffused proto-carbonate, which, being then carried by infiltration through the more porous beds, would...
Pagina 132 - that no forge, going by water, or other works should be erected in any of the said plantations, for the making, working, or converting of any sows, pigs, or cast-iron into bar or rod iron.
Pagina 163 - G1/^ feet wide at the boshes, and in 1856 made 971 tons of pig iron. About 1870 the operations were discontinued. Cecil County. Principio Furnace. — The account of the Principio Company is based almost entirely on a very full description of the operations of that company by Mr. Henry Whitely in the Pennsylvania Magazine of History, 1887. Those most prominently connected with the company were Sir Nicholas Hackell Carew, Bart, of Beddington County, Surrey; Thomas Russell, of Birmingham, and his sons,...
Pagina 143 - Daniel and Samuel Hughes were proprietors of an air furnace in Frederick County (afterward made Washington County). On July 1, 1776, the Maryland Convention authorized the Council of Safety to lend the proprietors for nine months the sum of £200 common money, to encourage them 'to prosecute their cannon foundry with spirit and diligence.
Pagina 176 - ALEXANDER, JH Report on the Manufacture of Iron addressed to the Governor of Maryland by JH Alexander. Printed by order of the Senate. Annapolis, 1840, 8vo, 369 pp., 3 plates.
Pagina 306 - ... Valley is a rough indication of the relative extent of the Red Mountain ore toward the southeast, and the width of the valley is sensibly greater southwest than it is northeast of Reeder Gap. In reference to the theories heretofore advanced regarding the origin of the Clinton ores it may be stated that all the new facts observed in the course of the work in the Birmingham district are in accordance with the hypothesis that the ore is the result of original deposition of ferruginous sediments....