Figure 24. — Brass surveying compass made by Benjamin Piatt (1757-1833) of 

 New Milford, Connecticut, about 1795-1800. Shown in original wooden 

 case and separately (opposite page). Photos courtesy Ohio State Museum. 



New York 



There were relatively few makers of mathematical instruments 

 in New York City before the end of the 18th century. Perhaps 

 the earliest was John Bailey, who moved from Fredericksburg, 

 Virginia, to Fishkill, New York, in 1778. He was a cutler by trade, 

 and he made and sold surgical instruments.^^ 



"Bulmain & Dennies" at 59 Water Street in New York were the 

 appointed agents to sell the "Perpetual Log or Distance Clock to 

 find a ship's way at sea." The device had been patented in the 

 United States, and one of the instruments was displayed at the bar 

 of the Tontine Coffee House, according to an advertisement in the 

 July 23, 1799, issue of the New York Gazette and General Advertiser. 



H. Caritat, at 153 Broadway in New York, imported and sold 

 "The Planispherical Planetarium." This item was described in an 

 advertisement " as "a graphic representation of the earth, in twelve 

 particular positions during its revolutionary course around the sun, 

 as also of the Moon's revolution around the earth, together with 

 literal description of parts and motions, etc." The advertisement 

 also stated that Caritat sold "Carey's newly improved Terrestrial 



" New York Packet, May 14, 1778. 



^* GoTTESMAN, op. cit. (footnote 22), p. 270. 



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