_Cinderella, or the Glass Slipper._--Two centuries ago furs were so rare, and therefore so highly valued, that the wearing of them was restricted by several sumptuary laws to kings and princes. Sable, in those laws called _vair_, was the subject of countless regulations: the exact quality permitted to be worn by persons of different grades, and the articles of dress to which it might be applied, were defined most strictly. Perrault's tale of _Cinderella_ originally marked the dignity conferred on her by the fairy by her wearing a slipper of _vair_, a privilege then confined to the highest rank of princesses. An error of the press, now become inveterate, changed _vair_ into _verre_, and the slipper of _sable_ was suddenly converted into a _glass_ slipper. Jarltzberg. _Mistletoe on Oaks._--In Vol. ii., p. 163., I observed a citation on the extreme rarity of _mistletoe on oaks_, from Dr. Giles and Dr. Daubeny; and with reference to it, and to some remarks of Professor Henslow in the _Gardeners' Chronicle_, I communicated to the latter journal, last week, the fact of my having, at this present time, a bunch of that plant growing in great luxuriance on an oak aged upwards of seventy years. I beg leave to repeat it for the use of your work, and to add, what I previously appended as likely to be interesting to the archæologist of Wales or the Marches, that the oak bearing it stands about half a mile N.W. of my residence here, on the earthen mound of Badamscourt, once a moated {215} mansion of the Herberts, or Ab-Adams, of Beachley adjacent, and of Llanllowell. George Ormerod. Sedbury Park, Chepstow. _Omnibuses._--It may be interesting to your readers at a future time to know when these vehicles, the use of which is daily extending, were introduced into this country; perhaps, therefore, you will allow me to state how the fact is. Mr. C. Knight, in his _Volume of Varieties_, p. 178., observes: "The Omnibus was tried about 1800, with four horses and six wheels; but we refused to accept it in any shape till we imported the fashion from Paris in 1830." And Mr. Shillibeer, of the City Road, the inventor of the patent funeral carriage, in his evidence before the Board of Health on the general scheme for extra-mural sepulture, incidentally mentions that he "Had had much experience in cheapening vehicular transit, having originated and established the Omnibus in England."--_Report_, p. 124., 8vo. ed. Arun. _Havock._--Havock is a term in our ancient English military laws: the use of it was forbidden among the soldiery by the army regulations of those days; so in the Ordinances des Batailles in the ninth year of Richard II, art. x.: "Item, que nul soit si hardi de crier havoick sur peine d'avoir la teste coupe."