 | John Bullock - 1853 - 192 páginas
...was secured. But sluggishness of the action is now recognized as the certain consequence of excess equally as of deficiency of declination. A small stream...proportion to this width, suffers retardation from the want of declivity in the current. Hence a drain which is disproportionally large in comparison... | |
 | John Bullock - 1854 - 386 páginas
...it was supposed that their full efficiency was secured. But sluggishness of action is now recognized as the certain consequence of excess of surface equally...as well as from a want of declivity in the current. Heuce a drain which is disproportionally large in comparison to the amount of drainage, becomes an... | |
 | John Bullock - 1855 - 508 páginas
...was secured. But sluggishness of the action is now recognized as the certain consequence of excess equally as of deficiency of declination. A small stream...proportion to this width, suffers retardation from the want of declivity in the current. Hence a drain which is disproportionally large in comparison... | |
 | John Bullock - 1865 - 506 páginas
...was secured. But sluggishness of the action is now recognized as the certain consequence of excess equally as of deficiency of declination. A small stream...proportion to this width, suffers retardation from the want of declivity in the current. Hence a drain which is disproportionally large in comparison... | |
 | Michigan. Department of Health - 1888 - 954 páginas
...is now recognized as the certain consequence of excess of surface, as well as of deficiency of fall. A small stream of liquid matter extended over a wide surface, and reduced in depth in the proportion to the width, suffers retardation from this circumstance, as well as from want of fall... | |
 | George Drysdale Dempsey - 1890 - 430 páginas
...Sewers and drains were formerly devised with the single object of making them large enough, by which it was supposed that their full efficiency was secured....declivity in the current. Hence, a drain which is disproportionately large in comparison to CONDITIONS OF DRAIN CONSTRUCTION. 231 the amount of drainage,... | |
 | William Paul Gerhard - 1899 - 484 páginas
...it was supposed that their full efficiency was secured. But sluggishness of action is now recognized as the certain consequence of excess of surface, equally...deficiency of declination. A small stream of liquid matter, extending over a wide surface, and reduced in depth in proportion to the width, suffers retardation... | |
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Sewers and drains were formerly devised with the single object of making them large enough, by which it was supposed that their full efficiency was secured. But sluggishness of action is now recognized as the certain consequence of excess of surface equally... 