List of Patents. 375 
Renfrew, North Britain, manufacturer, “ improvements in machinery for 
the production of, and ornamenting of fabrics and tissues generally, parts 
of which improvements are applicable to the regulation of other ma- 
chinery, and to purposes of a similar nature.”——21st February 1850:: 
45. To Louis Napotron Le Gras, of Paris, in the republic of France, 
civil-engineer, “improvements in the separation and disinfection of fécal 
matters in the manufacture of manure, and in the apparatus employed 
therein.” —2ist February 1850. 
46, To Atrrep Vincent Newron, of the Office for Patents, 66 Chan- 
cery Lane, in the county of Middlesex, mechanical draughtsman, “ im- 
provements i in manufacturing and refining sugar;’’ being a communica- 
tion from abroad.—22d February 1850. 
-47..To Eryest Gaston, of the Erechtheum Club, Saint James’s, in the 
county of Middlesex, gentleman, “certain improvements in artificial 
fuel, and in machinery used for manufacturing the same.” —22d February 
1850. 
48. To Avcusre Reinnarpe, of Leicester Street, Leicester Square, in 
the county of Middlesex, chemist, “improvements in preparing oils for 
lubricating purposes, and in apparatus for filtering oil and other liquids.” 
—25th February 1850. 
49. To OnesrpHore Recqueur, of Paris, in the republic of France, 
civil engineer, “ certain improvements in the manufacture of fishing-nets 
and other net fabrics.” —25th February 1850. 
50. To James Youna, of Manchester, in the county of Lancaster, ma- 
nufaeturing chemist, ‘‘ improvements in the treatment of certain ores, and 
other matters containing metals, and in obtaining products therefrom,” 
— 26th February 1850. 
51. To Atrrep Vincent Newron, of the Office for Patents, 66 Chan- 
cery Lane, in the county of Middlesex, mechanical draughtsman, “! im- 
‘provements in manufacturing leather ;” being a communication, from 
abroad.— 27th February 1850. 
52. To Eveine Axzon, of Ponton Street, Haymarket, in the county of 
Middlesex, ‘improvements in increasing the draft in chimneys of loco- 
motive and other engines.” —4th March 1850. 
_ 53. To Wittiam Brown, of Airdrie, Lanarkshire, electrician, and 
Witiiam Wits the younger, of St Dennis; in the county of Corn- 
wall, gentleman, “‘ improvements in electric and magnetic apparatus" for 
‘indicating and communicating intelligence.”-—4th March 1850. 
“54. To Avexanpre Heptanb, of Paris, in’ the republic of Franze, 
gentleman, “ certain improvements in propelling.” —5th March 1850, 
