John Hopkins Press, 1898
CONTENTS.--Vol. I (1897)--Vol. II (1898)--Vol. III (1899)--Vol. IV (1902)--Vol. V (1905)--Vol. VI (1906)--Vol. VII (1908)--Vol. VIII (1909)--Vol. IX (1911)--Vol. X (1918)--Vol. XI (1922)--Vol. XII (1928)--Vol. XIII (1937)--Vol. 14 (1941)
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accuracy amount angles appearance Baltimore base beds blocks boundary building Canal carried character Chesapeake Coast color considerable correction Creek Deposit detailed determined direction distance drawn early east eastern entire errors fact feet figures formations furnished Geological Geological Survey given gives granite greater important inch included increased indicated joints known land later less limestones limits marble marked Maryland material means measured method miles Mountain nature necessary observations obtained opened operated original Plate points Port Deposit portion position Potomac prepared present published quarries railroad regarding region represented river roads rock sandstone scale seems sheet shore shown side sketch slates Smith star station stone structure surface Survey territory tests tion topographic traverse triangulation various Virginia Washington weight western
Seite 350 - You must observe if you can, whether the river on which you plant doth spring out of mountains or out of lakes. If it be out of any lake, the passage to the other sea will be more easy, and [it] is like enough, that out of the same lake you shall find some spring which run[s] the contrary way towards the East India Sea...
Seite 308 - The number of angle equations in any figure is equal to the number of closed triangles into which it can be resolved. But since certain of these are a consequence of the others, the number of angle conditions which it is desirable to introduce is less than the number of triangles. The number of angle equations in any figure is equal to the number of closed lines in the figure plus one, minus the mimber of stations.
Seite 398 - A Map of Pensilvania, New-Jersey, New York, And the Three Delaware Counties: By Lewis Evans. MDCCXLIX.
Seite 359 - Relation." which was entered at Stationer's Hall, London, August 13, 1608, under the following title, which differs from the printed one, as it mentions Nelson's name: "A true relation of such occurrences and accidents of note as have happened in Virginia synce the first planting of that Colonye which is nowe resident in the south parte of Virginia till master Nelson's comminge away from them, etc.
Seite 271 - This correction, designated by a, represents the error in the setting of the instrument in the meridian. Its effect is zero at the zenith and increases toward the horizon. Since the instrument is liable to be disturbed during the operation of reversal, it is necessary to determine the azimuth error, both before and after reversal, separately. A comparison of the clock error, determined from observations upon north and south stars, will furnish the data necessary for the determination of azimuth....
Seite 382 - Virginia and Maryland as it is planted and inhabited this present year 1670 surveyed and exactly drawne by the only labour and endeavour of Augustin Herrman, Bohemiensis.
Seite 335 - ... consequently there is more or less generalization. It is therefore impossible to make any map an accurate, faithful picture of the country it represents. Moreover, the smaller the scale the higher must be the degree of generalization, and the further must the map necessarily depart from the original. Now, it is in this matter of generalization that the judgment of the topographer is most severely tested. He must be able to take a broad as well as a detailed view of the country, he must understand...
Seite 325 - A traverse line consists of a series of direction and distance measurements. Each course, as the direction and the accompanying distance are called, depends upon the one immediately preceding it, and a continuous chain is thus formed. Traverse lines are largely used in the topographic work proper for making minor locations.
Seite 364 - A Relation of Maryland; Together with a Map of the Country, The Conditions of Plantation, His Majesties Charter to the Lord Baltemore, translated into English. These bookes are to bee had, at Master William Peasley,' Esq.; his house, on the back-side of Drury Lane, neere the Cock-pit Playhouse; or, in his absence, at Master lohn Morgan's house in high Holbourn, over against the Dolphin, London, September the 8. Anno Pom.