List of Patents. 235 
Jonathan Dickerson, Jan. 9, improvement in sawing and polish- 
ing marble, &c. 
James Eaton, Feb. 12, manufacturing seal skins. 
E. Perkins, Feb. 19, removing pains, &c. by metallic points. 
Samuel Morey, April 11, raising water by wind. 
Benjamin Tyler, April 15, machine for cleaning wheat, &c. 
James Davis, April 14, improvement in tanning- leather. 
T. Bidwell, April 20, improved mode of forming a yellow colour 
Samuel Lee, jun. April 30, composition of « bilious pills.” 
Peter Zacharie, May 4, machine for cutting nails and brads. 
J. Hilyard, May 12, improvement in manufacturing sumach. 
Robert Dawson, May 12, improvement in bolting cloths. 
Hodgen Holmes, May 12, improvement in the cotton gin. 
J. Roberts, jun. Feb. 13, cleaning clover and other seeds, Sec. 
James Sylvanus M‘Lean, May 27, improvement in piano fortes. 
Oliver Evans, May 28, improvement in burr mill-stones. 
Elijah Backus, May 31, new invented steam engine and boiler. 
L. M‘Kechnie, July 1, stays for removing distortions in the spine. 
Joseph Francis Mangin, July 2, improvement in sawing and po- 
lishing marble, Sec. 
Robert Grant, Oct. 17, machine for scouring rice and other grain. 
George James, Nov. 16, improvement in making salt. 
John Fowler, Nov. 16, improvement in concentrating the volatile 
parts of calcareous earth, stones, &c. 
Peter Cliff, Nov. 16, improvement in manufacturing cut nails. 
Isaac Garretson, Nov. 16, machine for heading and cutting nails. 
Apollos Kinsley, Nov. 16, improvement in a printing press. 
James Stanfield, Nov. 16, improvement in splitting sheep skins. 
Mark I. Brunei, Nov. 16, newmethod of ruling books and paper. 
Theobald Bourke, Nov. 16, improvement in pumps. 
William Frobisher, Nov 17, manufacturing potash. 
Clement Rentgen, Nov. 17, improvement in forging bolts and 
round iron. 
Amos Whittemore, Nov. 17, improvement in a loom for weaving 
cloth. 
Amos Whittemore, Nov. 19, a “ preambulator” for measuring 
a ship’s way. 
Amos Whittemore, Nov. 19, machine for cutting nails. 
John Bigelow, Nov. 19, improvement in manufacturing nails. 
George Chandlee, Dec. 12, improvement in cutting and heading 
nails, &c. 
Thomas Passmore, Dec. 23, conjuror for cooking and boiling. . 
