The ghost has been a proverb for impudent trickery, and stern exposure, yet its history remains a puzzle, and is a good, if vulgar type, of all similar marvels. The very people who 'exposed' the ghost, were well aware that their explanation was worthless, and frankly admitted the fact. Yet they, no more than we, were prepared to believe that the phenomena were produced by the spiritual part of Miss Fanny L.--known after her decease, as 'Scratching Fanny'. We still wander in Cock Lane, with a sense of amused antiquarian curiosity, and the same feeling accompanies us in all our explorations of this branch of mythology. It may be easy for some people of common-sense to believe that all London was turned upside down, that Walpole, the Duke of York, Lady Mary Coke, and two other ladies were drawn to Cock Lane (five in a hackney coach), that Dr. Johnson gave up his leisure and incurred ridicule, merely because a naughty child was scratching on a little wooden board. The matter cannot have been so simple as that, but from the true solution of the problem we are as remote as ever. We can, indeed, study even the Cock Lane Ghost in the light of the Comparative, or Anthropological Method. We can ascertain that the occurrences which puzzled London in 1762, were puzzling heathen philosophers and Fathers of the Church 1400 years earlier. We can trace a chain of 'Scratching Fannies' through the ages, and among races in every grade of civilisation. And then the veil drops, or we run our heads against a blank wall in a dark alley. Chaldeans, Egyptians, Greeks, Eskimo, Red Men, Dyaks, Fellows of the Royal Society, Inquisitors, Saints, have perlustrated Cock Lane, and have come away nothing the wiser. Some, of course, have thought they had the secret, have recognised the work of God, 'daemons,' 'spirits,' 'ghosts,' 'devils,' 'fairies' and of ordinary impostors: others have made a push at a theory of disengaged nervous force, or animal magnetism. We prefer to leave theory alone, not even accepting with enthusiasm, the hypothesis of Dr. Johnson. 'He expressed great indignation at the imposture of the Cock Lane ghost, and related, with much satisfaction, how he had assisted in detecting the cheat, and had published an account of it in the newspapers. Upon this subject I incautiously offended him, by pressing him with too many questions,' says Boswell,--questions which the good doctor was obviously unable to answer.