in the course of my practice, I have met with the case of the porter, and only once. It is now eighteen years since. The patient was a baker--and I examined the subject after death. This man will die.' The lecturer then proceeded to describe minutely and lucidly the seat of the disease, its nature, and best treatment. He told them what might be done by way of alleviation, and directed them to look for such and such appearances after death. The man lingered for a few days, and then departed. At the _post mortem_, the professor was found to be correct in every particular. What say you to this by way of memory and quick intelligence?" The letter went on to speak of the facility of procuring subjects--as cheap and plentiful, to use M'Linnie's phrase, "as herrings in England;" of the daily exhibition in the dissecting room of disease of all kinds, in all stages; of the enthusiastic natures of both teachers and pupils; of the earnest and inspiring character of hospital practice; and at last, wound up its flattering history with a peroration, that extinguished in an instant every spark of hesitation that lingered in my mind. In less than a fortnight after M'Linnie's summons, I was one of a mixed party in a diligence and eight, galloping over the high-road to Paris, at the rate of five statute miles an hour. I had taken care to carry abroad with me an introduction to _one_ influential member of the profession. I say _one_, because I refused, with deliberation, to _encumber_ myself, as Doctor Johnson has it, with more help than was actually necessary to my well-doing. A travelling student, with a key to the confidence of one man of power and kindred spirit, has all that he can desire for every professional purpose. If his happiness depend upon social enjoyments, and he must needs journey with a messenger's bag, or be utterly miserable, let him by all means save his travelling expenses, and visit his natural acquaintances. My letter of credit was obtained from my friend H----, who at the time filled the anatomical chair at Guy's, and to whom I am grateful for more acts of real kindness than he is willing to allow. To this letter of credit, and to the acquaintance formed by its means, the reader is indebted for the curious history I am about to relate. That the former was likely to lead to something original and unusual, I certainly suspected when H---- placed the document in my hands, with his last words of caution and advice. I could hardly dream of half that was to follow. "Pray, take care of yourself, Mr Walpole," said my good friend; "you are going to a very dangerous and seductive city, and you will require all your firmness and good principles to save you from the force of evil example. Don't be led away--don't be led away--that is all I beg of you." "I shall be careful, sir."