Natural ventilation is impracticable in flat deposits worked by drifts and without shafts.
This assembly, however, soon showed itself impracticable and incapable, and on the 12th of December the speaker, followed by the more moderate members, marched to Whitehall and returned their powers to Cromwell, while the rest were expelled by the army.
Shelburne expected great service from him as a pamphleteer, but Watson proved from the ministerial point of view a most impracticable prelate.
As, however, the wavelength necessary to cover any considerable distance must be at least 200 or 300 ft., it becomes impracticable to employ mirrors for reflection.
This portion of the law, designed to reassure foreign Catholics, met with little opposition; but the second portion, regulating the relations between state and church in Italy, was sharply criticized by deputies who, like Sella, recognized the ideal of a free church in a free state to be an impracticable dream.