 The various stages of the undertaking are represented from the excavation and embankment, to the complete work.In some of the early views, the scene is varied by the bustle and life displayed by the hundreds of workmen engaged in their different avocations.Two views of the Kilsby Tunnel are interesting; in the first "a working shaft," the powerful light bursting through the aperture in the roof, and shewing the group of workmen and horses with one of the operators descending, affords a striking idea of the vastness of the Tunnel itself.