Lady Morgan’s Memoirs
        Sydney Smith to Lady Morgan, 5 June 1843
        
        
          
        
        
          
        
       
      
      
      
      
     
     
    
     56, Green Street, Grosvenor
                                                        Lane, 
                                                    June 5, 1843. 
    
     I had fully intended, my dear madam, to have
                                                been of your party to-night; but I went to the Thames Tunnel, and
                                                have destroyed myself by walking under the river, and descending
                                                and ascending one hundred and twenty steps; there was a suffocating
                                                heat and a want of ventilation for which I was not prepared. I am
                                                astonished the Thames submits to the insult; one day or another it
                                                will come down upon the subaqueous intruders with all the force of
                                                a basin of water flung from the seventh story of a house in
                                                Edinburgh. 
     Yours, my dear madam, 
                                                     Very sincerely, 
    
    
      
       PS.—Mrs. Sidney (ill with the influenza) desires me
                                                    to say that she depends upon Sir C.
                                                        Morgan and you for Thursday; I beg you will keep
                                                    away from the Tunnel in the interim. 
     
    
    Sir Thomas Charles Morgan  (1780-1843)  
                  English physician and philosophical essayist who married the novelist Sydney Owenson in
                        1812; he was the author of 
Sketches of the Philosophy of Morals
                        (1822). He corresponded with Cyrus Redding.
               
 
    Catharine Amelia Smith  [née Pybus]   (1768-1852)  
                  The daughter of John Pybus, English ambassador to Ceylon; in 1800 she married Sydney
                        Smith, wit and writer for the 
Edinburgh Review.
               
 
    Sydney Smith  (1771-1845)  
                  Clergyman, wit, and one of the original projectors of the 
Edinburgh
                            Review; afterwards lecturer in London and one of the Holland House
                        denizens.