The writer adds,--"We shall be able to make a great saving of expense in the woollen manufacture, as soon as we can discover an effective method of conducting the electricity away from the cards, as we shall then be able to dispense entirely with the use of oil on the wool, we shall save at least $30,000 per annum, when the mills are in full operation."--_American Annual of Scientific Discovery_ p. 117.
_List of Patents granted for Scotland from 22d March to 22d June 1850._
1. To JAMES HIGGINS, of Salford, in the county of Lancaster, machine maker, and THOMAS SHOWFIELD WHITWORTH, of Salford aforesaid, "improvements in machinery for preparing, spinning, and doubling cotton, wool, flax, silk, and similar fibrous materials."--22d March 1850.
2. To FRANCAIS VOUILLON, of Princes Street, Hanover Square, in the county of Middlesex, manufacturer, "improvements in the manufacture of hats, caps, bonnets, and other articles made of the same or similar materials."--26th March 1850.
3. To WILLIAM EDWARD NEWTON, of the Office for Patents, 66 Chancery Lane, in the county of Middlesex, civil engineer, "improvements in the manufacture of knobs of doors, articles of furniture, or other purposes, and in connecting metallic attachments to articles made of glass, or other analogous materials."--26th March 1850.
4. To JONATHAN CHARLES GOODALL, of Great College Street, Camden Town, in the county of Middlesex, card-maker, "improvements in machinery for cutting paper."--27th March 1850.
5. To CHARLES FELTON HAILSMAN, of Argyle Street, in the county of Middlesex, gentleman, "improvements in machinery for spinning or twisting cotton, wool, or other fibrous substances."--28th March 1850.
6. To ROBERT MILLIGAN, of Harden, near Bingley, in the county of York, manufacturer, "an improvements mode of treating certain floated warp, or welt, or both, for the purpose of producing ornamented fabrics."--28th March 1850.
7. To ROBERT WHITE, and JAMES HENDERSON GRANT, both of Dalmarnock Road, Glasgow, North Britain, engineers, "certain improvements in machinery, or apparatus to be used in mines, which improvements, or parts thereof, are also applicable to other purposes of a similar nature."--11th April 1850.