 The roads can never be rendered thus perfectly secure, until the following principles be fully understood, admitted, and acted upon: namely, that it is the native soil which really supports the weight of traffic : that while it is preserved in a dry state,...  An Elementary Course of Civil Engineering - Side 82av Joseph Mathieu Sganzin - 1837 - 232 siderUten tilgangsbegrensning - Om denne boken
 | John Loudon M'Adam - 1821 - 222 sider
...their being in future affected by any change of weather or season. The roads can never be rendered thus perfectly secure, until the following principles be...sinking, and that it does in fact carry the road and the carriages also ; that this native soil must previously be made quite dry, and a covering impenetrable... | |
 | James Paterson (road surveyor.) - 1822 - 96 sider
...admitted, and acted upon: namely, that it is the unlive soil which really supports the weight of the traffic: that while it is preserved in a dry state,...it will carry any weight without sinking, and that in fact it does carry the road and the carriages also; that this native soil must previously be made... | |
 | Thomas Curtis (of Grove house sch, Islington) - 436 sider
...rendered perfectly secure, according to this gentleman (see his report to the board of agriculture), until the following principles be fully understood,...sinking ; and that it does, in fact, carry the road and the carriages also ; that this native soil must previously be made quite dry, and a covering impenetrable... | |
 | Library, John Baxter - 1830 - 594 sider
...Board of Agriculture, " It is the native soil which really supports the weight of traffic, while that is preserved in a dry state, it will carry any weight without sinking, and does in fact carry the road and the carriages also. This native soil must previously be made quite... | |
 | Library, John Baxter - 1830 - 614 sider
...Board of Agriculture, " It is the native soil which really supports the weight of traffic, while that is preserved in a dry state, it will carry any weight without sinking, und does in fact carry the road and the carriages also. This native soil must previously be made quite... | |
 | 1832 - 426 sider
...admitted, and acted upon, namely : That it is the native soil whish really supports the weight of the traffic ; that while it is preserved in a dry state...weight, without sinking, and that it does in fact car- lío prevent the camagüe from wearing Ihroujfh, solid ery the road and the carriage also; that... | |
 | John Loudon McAdam - 1833 - 52 sider
...admitted, and acted upon, namely : That it is the native -saS, which really supports the weight of the traffic; that while it is preserved in a dry state it will carry any weight, without sinking, ahd thai it does in fact carry the road and the carriage also ; that the native soil must previously... | |
 | Simeon DeWitt Bloodgood - 1838 - 252 sider
...comprised in the following quotation from his Report to the Board of Agriculture, (vol. vi. p. 46): — (< Roads can never be rendered perfectly secure until...sinking, and that it does, in fact, carry the road and the carriages also ; that this native soil must previously be made quite dry, and a covering impenetrable... | |
 | John Loudon McAdam - 1863 - 100 sider
...their being in future affected by any change of weather or season. The roads can never be rendered thus perfectly secure, until the following principles be...sinking, and that it does in fact carry the road and the carriages also ; that this native soil must previously be made quite dry, and a covering impenetrable... | |
 | United States. Department of Agriculture - 1867 - 736 sider
...opinions and directions. He says : " It is the native soil which really supports the weight of the traffic; that while it is preserved in a dry state it will cany any weight without sinking; that this native soil .must be previously made quite dry, and a covering... | |
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