History of Western Maryland
Реклама. ООО «ЛитРес», ИНН: 7719571260.
Оглавление
J. Thomas Scharf. History of Western Maryland
CONTENTS:
PREFACE
CHAPTER I. TOPOGRAPHY AND GEOLOGY
CHAPTER II. THE ABORIGINES
CHAPTER III. THE EARLY SETTLERS
CHAPTER IV. THE FRENCH AND INDIAN WAR
CHAPTER V. LOGAN AND CRESAP
CHAPTER VI. BOUNDARY LINES
CHAPTER VII. THE WAR FOR INDEPENDENCE
CHAPTER VIII. THE CONSTITUTION AND UNION
CHAPTER IX. THE WAR OF 1812
CHAPTER X. THE CIVIL WAR
CHAPTER XI. THE FIRST YEAR OF THE CIVIL WAR
CHAPTER XII. THE MARYLAND CAMPAIGN OF 1862
Отрывок из книги
History of Western Maryland
Volume 1: From The Early Settlers To The Civil War
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Gold and silver have been detected as minute particles in some of the older slates and metamorphic rocks, both of the metalliferous belt and mountain range. The structure of these regions, however, renders it very unlikely that either of these metals will be found there in profitable amounts.
Roofing slates of good quality are present in several localities within the talcose schist region on the eastern side of the county. Among the Linganore hills several quarries of chiefly local interest have been opened, but near Ijamsville, directly on the line of the Baltimore and Ohio Railroad, large beds of even texture and dark-blue color have been worked for many years. These produce excellent thin plates of good quality, which improve in size and firmness as the beds are worked to greater depths. Slates of an entirely different character occur both in the Catoctin and Blue Ridge Mountains, next the roads leading towards Hagerstown. These are tough and very strong, easily and naturally split into slabs of four inches or more in thickness, may be obtained in pieces of the largest size, and are of a nature particularly well fitted for pavements, caps of walls, sills, and for the outside of buildings generally.
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