It appears that in Mr. Surrebutter's time (_circa_ 1780) it was usual for a student to spend three whole years in the same pleader's chambers, paying three hundred guineas for the course of study. Not many years passed before students saw it was not to their advantage to spend so long a period with the same instructor, and by the end of the century the industrious student who could command the fees wherewith to pay for such special tuition, usually spent a year or two in a pleader's chambers, and another year or two in the chambers of an equity draughtsman, or conveyancer. Lord Campbell, at the opening of the present century, spent three years in the chambers of the eminent Special Pleader, Mr. Tidd, of whose learning and generosity the biographer of the Chancellors makes cordial and grateful acknowledgment. Finding that Campbell could not afford to pay a second hundred guineas for a second year's instruction, Tidd not only offered him the run of his chambers without payment, but made the young Scotchman take back the L105 which he had paid for the first twelve months. In his later years Lord Campbell delighted to trace his legal pedigree to the great pleader and 'pupillizer' of the last century, Tom Warren. The chart ran thus: "Tom Warren had for pupil Sergeant Runnington, who instructed in the mysteries of special pleading the learned Tidd, who was the teacher of John Campbell." With honest pride and pleasant vanity the literary Chancellor maintained that he had given the genealogical tree another generation of forensic honor, as Solicitor General Dundas and Vaughan Williams, of the Common Pleas Bench, were his pupils.