The ideas of my friend Watson, though limited, are exceedingly pertinacious. For a long time he has worried me to write an experience of my own. Perhaps I have rather invited this persecution, since I have oftern had occasion to point out to him how superficial are his own accounts and to accues him of pandering to popular taste instead of confining himself rigidly to fact and figures. 'Try it yourself, Holmes!' he has retorted, and I am compelled to admit that, having taken my pen in my hand, I do begin to realize that the matter must be presented in such a way as may interest the reader.