Bulletin - United States, Office of Public Roads, Ausgaben 21-32U.S. Government Printing Office, 1901 |
Inhalt
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Häufige Begriffe und Wortgruppen
acid Agriculture amount annual Applause appropriation bad roads bonds broken stone built carbonic acid cash cent chert clay Congress convention convicts cost county road diabase districts Dollars electrolytic engineer expended Expenditures in money farm farmers feldspar funds Government grade gravel haul hornblende igneous rocks improved roads inches interest iron Jefferson labor on roads labor tax legislature macadam macadam road Mecklenburg County mileage and expenditures Miles of public miles of road mineral money and labor money system National Good Roads North Carolina Office of Public organization orthoclase paid poll tax President public highways Public Road Inquiries Public-road mileage railroad repair reported road building road improvement road purposes road tax roadbed Roads Association roads movement roads train rock rolled roller Roy Stone rural free delivery rusting sand silicate supervisors surface taxation tion to-day Total town township transportation United wagon York
Beliebte Passagen
Seite 37 - The voice of him that crieth in the wilderness, Prepare ye the way of the Lord, Make straight in the desert a highway for our God. Every valley shall be exalted, And every mountain and hill shall be made low: And the crooked shall be made straight, And the rough places plain: And the glory of the Lord shall be revealed, And all flesh shall see it together: For the mouth of the Lord hath spoken it.
Seite 56 - appearance of the wheels and their work was like unto the colour of a beryl : and they four had one likeness : and their appearance and their work was as it were a wheel in the middle of a wheel.
Seite 20 - SEC. 202. From the sums appropriated pursuant to section 201 for each fiscal year, the Commissioner shall allot $20,000 each to Guam, American Samoa, and the Virgin Islands, and $80,000 to each of the other States, and shall allot to each State such part of the remainder of such sums as the population of the State bears to the population of the United States, according to the most recent decennial census.
Seite 51 - ... resulting from such taking; providing for the payment of the costs and expenses incurred in making such improvements, and in thereafter repairing and maintaining said road, and authorizing the levy of a tax to provide a fund for such purposes...
Seite 47 - After the broken stone for the first course has been spread to an uniform thickness, and has a proper cross-section, it is to be rolled with a steam roller, weighing not less than 10 tons, until it is compacted to form a firm, smooth surface. Should any difficulty be experienced while rolling in having the stone readily compact, water shall be sprinkled or sand or other material be spread, as the engineer may direct.
Seite 13 - Here was buried Thomas Jefferson, author of the Declaration of Independence, of the statute of Virginia for religious freedom, and father of the University of Virginia.
Seite 20 - Five of the resulting briquettes, measuring exactly 25 mm. in height are taken out and allowed to dry 12 hours in air and 12 hours in a hot oven at 100 °C. After cooling in a desiccator they are tested by impact in a machine especially constructed for the purpose. This machine is somewhat similar to that used in determining the hardness, and the blow is about the same, excepting that it is given by a 1 kg. hammer and the distance of drop does not exceed 10 cm. The standard fall of the hammer
Seite 37 - Supervisor, a bottom course of stone, of an average depth of inches, is to be set by hand as a close, firm pavement, the stones to be placed on their broadest edges lengthwise across the road...
Seite 21 - The standard fall of the hammer' is 1 cm. and the average number of blows required to destroy the bond of cementation in the five briquettes determines the cementing value. The specific gravity is the weight of the material compared with that of an equal volume of water, and is obtained by dividing the weight in air of a rock fragment by the difference of its weight in air and water. Given the specific gravity the weight per cubic foot of the rock is obtained by multiplying this value by 62.5 pounds,...
Seite 10 - The calcareous rocks are of many colors, according to the amount and character of the impurities present. Metamorphic Rocks. " Rocks of this class are such as have been produced by prolonged action of physical and chemical forces (heat, pressure, moisture, etc.) on both sedimentary and igneous rocks alike. The foliated types (gneiss, schist, etc.) represent an advanced stage of metamorphism on a large scale (regional metamorphism), and the peculiar schistose or foliated structure is due to the more...