152 List of Patents for New Inventions. 
Mr. Schumacher’s Astronomische Hiilfstafeln’ will not be 
ready for publication these two months: this work has been, in 
some measure, superseded by a similar publication of Mr. Baily’s, 
in this country; we regret however that this latter work is printed 
for private circulation only, and not for general use, 
The observers of double stars will be pleased to hear that there 
is a list of several which have been observed by Dr. Struve, at 
the new Observatory at Dorpat, in Mr. Bode’s Astronomische 
Jahrbuch for 1824. 
The Russians are about to measure an arc of the meridian in 
their country: Dr. Struve and M. Walbeck are to have the di- 
rection of the business. 
LIST OF PATENTS FOR NEW INVENTIONS. 
To John Hague, of Great Pearl-street, Spitalfields, Middle- 
sex, engineer, for his improved method of making metallic pipes, 
tubes, or cylinders, by the application and arrangement in appa- 
ratus of certain machinery and mechanical powers.—Dated the 
29th Jan. 1S22.—6 months allowed to enrol specification. 
To Sir William Congreve, of Cecil-street, Strand, Middlesex, 
baronet, for certain improved methods of multiplying fac-simile 
impressions to any extent.—29th Jan.—6 months. 
To Peter Ewart, of Manchester, Lancashire, civil engineer, 
for his method of making coffer dams.—29th Jan.—2 months. 
To Robert Bill, of Newman-street, in the parish of St. Mary- 
le-bone, Middlesex, gentleman, for his improved method of 
manufacturing metallic tubes, cylinders, cones, or of other forms, 
adapted to the construction, and for the construction of the 
masts, yards, booms, bowsprits, or casks, or for any other pur- 
poses to which they may be applicable.-—5th Feb.—6 months.” 
To Frederick Louis Tatton, of New Bond-street, Middlesex, 
watcli-maker, who, in consequence of discoveries by himself and 
communications made to him by a certain foreigner residing 
abroad, is in possession of an astronomical! instrument or watch by 
which the time of the day, the progress of the celestial bodies, 
as well as carriages, horses, or animals, may be correctly ascer= 
tained.—9th Feb.—2 months. 
To George Holworthy Palmer, of the Royal Mint, engineer, 
for certain improvements in the production of heat by the appli- 
cation of weil-known principles not hitherto made use of in the 
construction of furnaces of steam-engines and of air furnaces in 
general, whereby a considerable saving in the expenditure of 
fuel is obtained, and the total consumption of smoke may be ef- 
fected.— 12th Feb.—6 months. 
To John Frederick Smith, of Dunston Hall, in the parish of 
Chesterfield, Derbyshire, esq., for his improvements in ico 
. to) 
