Figure 26.—Longitudinal section through Thames Tunnel after sandbagging to close a break in the riverbed. The tunnel is filled with silt and water. (Law, A Memoir of the Thames Tunnel.)
Figure 27.—Interior of the Thames Tunnel shortly after completion in 1843. (Photo courtesy of New York Public Library Picture Collection.)
Figure 28.—Thames Tunnel in use by London Underground railway. (Illustrated London News, 1869?)