tug,    which   hoots   from    time    to
time    like    some    horrid  monster
in  distress.’  The deserted
river   was no  longer  a   popular
highway,    but a   ‘receptacle for
filth’  –   as  it  had been    for
decades.    A   satirical   etching
by  William Heath   in  1828
showed  just    how concerned
people  already were    about   the
state   of  the water,  as  a   woman
hurls   down    her teacup  in
horror  when    she sees
monsters    swimming    in  a
                    
                      jeff_l
                      (Jeff_L)
                      
                    
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