text:  "There can be no doubt " say they "that a well-constructed engine a steam-carriage conveyance between London and Birmingham at a velocity unattainable by horses and limited only by safety may be maintained; and it is our conviction that such a project might be undertaken with great advantage to the public more particularly if as might obviously be the case without interfering with the general use of the road a portion of it were to be prepared and kept in a state most suitable for travelling in locomotive steam-carriages