R. W. C.

Draught or Draft of Air.—Will some of your contributors inform a reader what term or word may be correctly used to signify the phrase "current of air" up the flue of a chimney, or through a room, &c.? The word draught or draft is generally or universally used; but that signification is not to be found attached to the word draught or draft in any dictionary accessible to the inquirer. The word is used by many English scientific writers, and was undoubtedly used by Dr. Franklin to signify a current of air in the flue of a chimney (see also Ure's Dict.). Yet the word cannot be found in Johnson or Ogilvie's Imp. Dict. with this signification. The word "tirage" is also used by French writers with the above signification; and though in French dictionaries its meaning is nearly the same, and nearly as extended as the English word draught or draft, yet it cannot be found in the Dict. de l'Acad. to signify as above.

New York.

Admiral Sir Thomas Tyddeman commanded the squadron sent during the war with the Dutch in the reign of Charles II. to assist in the capture of certain richly laden merchant vessels which had put into Bremen, but (owing to the treachery of the Danish governor, who instead of acting in concert with the English, as had been agreed, opened fire upon them from the town) was unable to effect his purpose.

After the admiral's return to England, a question was raised as to his conduct during the engagement; and some persons went so far as to accuse him of cowardice; but the Duke of York, who was then in command of the fleet, entirely freed him from such charges, and declared that he had acted with the greatest discretion and bravery in the whole affair.

He died soon after this, in 1668, according to Pepys's account, of a broken heart occasioned by the scandal that had been circulated about him, and the slight he felt he was suffering from the Parliament. Perhaps some of your readers can inform me where I may meet with farther particulars relating to Admiral Tyddeman. I am particularly desirous to gain information as to his family and his descendants; also to learn upon what occasion he was created a baronet or knight.

Captain.

Pedigree Indices.—Is there any published table of kin to Sir Thomas White, the founder of St. John's College, Oxford, or of William of Wykeham, after the plan of Stemmata Chicheliana?

Is there any Index to the Welsh and Irish pedigrees in the British Museum? Sims' valuable book is confined to England.

Are there Indices to the pedigrees in the Lambeth Library, or the Bodleian Library at Oxford?