_Dr. Fell_ (Vol. v., p. 296.).--Mr. Tom Sheridan, the only child of Richard Brinsley Sheridan by his wife (Miss Elizabeth Linley), is author of the lines on Dr. Fell. They were written on the celebrated Dr. Parr, under whose tuition he was. Why he gave to Dr. Parr the nomen "Dr. Fell," I do not know. I have often heard my dear mother repeat the lines: "I do not like thee, Dr. Fell, The reason why I cannot tell, But this I know full well, I do not like thee, Dr. Fell." The metre of the third line would be more perfect by the addition of the dissyllable; but the lines I have so often heard want this. My mother was very intimate with the Sheridan family, and many years agone she informed me that Miss Jane Linley (afterwards Mrs. Ward) told her that young Tom Sheridan composed the foregoing lines on Dr. Parr. E. F. _List of Prothonotaries_ (Vol. v., p. 294.).--Lists of the prothonotaries of the Court of Common Pleas, from Henry VIII. to George IV., may be collected from the _Reports of the Deputy Keeper of Public Records, Second Report, Appendix_, ii. 67-88.; _Fourth Report, Appendix_, ii. 30-52. C. H. COOPER. Cambridge. _The Vellum-bound Junius_ (Vol. iii., p. 262.; Vol. v., p. 303.).--Since I wrote to you I have seen my informant, and am now enabled to state, that what your correspondent calls "the vellum-bound Junius," at Stowe, was, as I said, printed on vellum, but _was not bound in vellum_. V. B. J. _Plague Stones_ (Vol. v., p. 308.).--The three following places, where these stones of exchange were erected, have just occurred to me, and I forward them to add to the desired list:-- At Derby the stone was known by the name of the Headless Cross; and it has within the last few years been removed for preservation to the Arboretum in that town. A stone of a similar name existed at Shrewsbury. At East Retford, in Nottinghamshire, was also one, called the Broad Stone. L. JEWITT. _George Trehern_ (Vol. v., p. 295.).--George Trehern, or Treheryon, was Autumn Reader of Lincoln's Inn, 12 Hen. VIII.; Lent Reader there 16 Hen. VIII.; and one of the Governors of that society 12 & 17 Hen. VIII. His reading on Carta Forestæ appears to have been printed in 4to., but in what year is not stated. (Dugdale's _Origines Juridiciales_, 251. 259.; _Bibliotheca Legum Angliæ_, i. 24., ii. 191.) C. H. COOPER. Cambridge. _St. Christopher_ (Vol. v., p. 265.).--I know not whether Mr. Drake's explanation (referred to by E. A. H. L.) be the same as that given in _Sacred and Legendary Art_, but the latter seems sufficiently satisfactory.