SIR,--The subject to which you direct my attention is no doubt of peculiar interest to those in any way connected with the vehicular traffic by which so much of the commerce and pleasure of the Metropolis is carried on. In view, however, of the pressing exigencies of the Irish Question, I cannot do more than take a note of your objections to mud-spots, leaving to those who may come after me the duty of dealing practically with your recommendations. I am, faithfully yours, W. E. GL-DST-NE. * * * On the evening when Mr. STANLEY dines with the Turners' Company, where he is entertained as a Re-Turner, it is hoped that the authorities of the National Gallery will kindly allow all their Turners to attend. The history of the Turners' Company is interesting, commencing as it does with WHITTINGTON, who was the first person (before HENRY IRVING played it) to hear _The Bells_, and to obey their injunction "to turn again." * * * * * [Illustration] NOTICE.--Rejected Communications or Contributions, whether MS., Printed Matter, Drawings, or Pictures of any description, will in no case be returned, not even when accompanied by a Stamped and Addressed Envelope, Cover, or Wrapper. To this rule there will be no exception. * * * * *