ROBERT BEATSON, Efq.

A Pamphlet, entitled, an Effay on the Comparative Advantages of Vertical and Horizontal Windmills.

J. BARRY, Efq. R. A.

A Quarto Pamphlet, entitled a Letter to the Dilettanti Society.

PRINT S.

J. T. DILLON, Esq.

The Mariner's Compass embellished.

Mr. C. NESBITT.

A large Print, cut on Wood, of St. Nicholas's Church, in Newcastle upon Tyne.

Mr. ROBERT CLARKE.

Three Views of the Iron Bridge over the River Wear, at Sunderland, in the County of Durham, one of which Prints is dedicated to the Society.

CHEMISTRY.

ARTHUR WILLIAM DEVIS, Efq.

A fmall Inftrument called a Nehrea, and used by the Natives of Hindooftan for scarifying the Heads of Poppies. See page 272.

POLITE ARTS.

Mifs KNIGHT.

A Buft of the late Earl of Chatham, formed of Tow and Leather.

MANUFACTURES.

Mifs DUKE.

A Piece of Needle-work.

MECHANICKS.

Mr. GEORGE JEE.

Two Models of a Mangle; and a Spring Vent for Beer or Wine Casks.

Mr. BULLOCK.

A pair of Rack Bolts for Cabinets.

Mr. RICKMAN.

A Model of a Flying Proa, as described in the Account of Lord Anfon's Voyage.

OF THE

MODELS AND MACHINES

Received fince the Publication of the Fifteenth Volume of the Society's Tranfactions, with the Numbers as they are arranged, in the Class to which they belong.

MECHANICKS. CLASS IV.

No. CLXXVII.

A

MODEL of a Machine for Drawing Bolts both into and out of Ships, by Capt. Bolton, R. N. for which he had the Gold Medal, a Bounty. See Page 318.

CLXXVIII. A Model of an Improved

Mangle, prefented by Mr.

CLXXIX.

CLXXX.

George Jee, for which he had a Bounty, the Silver Medal.

A Vent Screw for a Beer Barrel, prefented by Mr. George Jee. See page 374.

A Pair of Rack Bolts, for a Cabinet, prefented by Mr. William Bullock. See page 374

CLXXXI. An improved or new-in

vented Escapement, by Mr.

John Prior, for which he had a Bounty of Thirty Guineas. See page 306.

OF THE

OFFICERS of the SOCIETY,

AND

CHAIRMEN

OF THE SEVERAL

COMMITTEES,

Elected March 22d, 1798.

PRESIDENT.

HARLES Duke of Norfolk, F. R. and A. S.

CHA

VICE-PRESIDENTS.

Charles Duke of Richmond, K. G. F. R. and A. S.

William Henry Duke of Portland, K. G. F. R. and A. S.

Hugh Duke of Northumberland, K. G.

F. R. and A. S.

Jacob