J. SIMPSON, Book-keeper, 72 William street.

City Hall, New York, Nov 29th, 1849.—I fully concur with Mr. Simpson in the above opinion.

GEO. W. MATSELL,
Chief of Police.

Lansingburgh, N. Y., Nov. 23d, 1849.—I fully agree with the preceding opinions on the subject of H. C. Foote’s Detector.

A. WALSH, Jr., Teller Bank of Lansingburgh.

New York, Dec. 22d, 1849.—I concur in the above statements.

AMASA Z. FOSTER, Exchange Broker, 234 Pearl street.

New York, Dec. 26th, 1849.—I have examined Mr. H. C. Foote’s system for detecting counterfeit Bank paper and think it useful, especially in well-executed counterfeits where judgment must depend upon the engraving alone.

W. R. VERMILYE,
Of Carpenter & Vermilye, Exchange Brokers, 54 Wall street.