Of all the problems which have been submitted to my friend, Mr. Sherlock Holmes, for solution during the years of our intimacy, there were only two which I was the means of introducing to his notice--that of Mr. Hatherley's thumb, and that of Colonel Warburton's madness.
Entre todos los problemas que se sometieron al criterio de mi amigo Sherlock Holmes durante los años que duró nuestra asociación, sólo hubo dos que llegaran a su conocimiento por mediación mía, el del pulgar del señor Hatherley y el de la locura del coronel Warburton.