[Illustration: Figure 44.--Wooden surveying compass made and sold by Thomas Greenough. Made of hickory, it is 11 in. long and has a diameter of 5-1/2 in. Compass card is of paper. Allegedly, this compass was used by Joseph Frye for surveying his land grant in what is now Fryeburg, Maine, in 1762. Loaned to the U.S. National Museum by Laurits C. Eichner of Clifton, New Jersey. USNM 315001.] Five other surveying compasses made by Thomas Greenough are known, and all are made of wood: the one in the Franklin Institute is made of gum (fig. 43), one in Old Sturbridge is made of maple, one in the Bucks County Historical collection at the Mercer Museum is made of cherry, one owned by this writer is made of basswood, and one on loan to the U.S. National Museum from Mr. Laurits C. Eichner is made of hickory (fig. 44). The compass at the Mercer Museum forms part of the surveyor's gear used to lay out the town of Weymouth, Massachusetts. The example in hickory on loan to the U.S. National Museum, as is usually the case with the compass cards of the Thomas Greenough instruments, has the central ring printed in gilt, and the inscription has turned black, making the inscription almost illegible. This specimen was owned by Joseph Frye, who was given a land grant in what is now Fryeburg, Maine, in 1762. He allegedly used this compass for surveying that land. In 1783 he assembled a manuscript book of tables (see fig. 45) for use in surveying for his son Joseph Frye, Jr. This manuscript also is part of the loan to the U.S. National Museum.[97] [Illustration: Figure 45.--Pages from a booklet of "Tables Useful in Surveying Land, Made and presented by Joseph Frye to his son, Joseph Frye, Jr., November 18, A.D. 1783." Loaned to the U.S. National Museum by Laurits C. Eichner of Clifton, N.J. USNM 315062.] [Illustration: Figure 46.--Compass card from a wooden surveying compass "Made by Thomas Greenough, Boston, New England." In collection of the writer.] The compass card in each of these five instruments is identical, designed for use in the mariner's compass (see fig. 46). A gentleman in the dress of about 1740 stands on the shore using a Davis quadrant. Offshore in the harbor is a schooner of the 1750 period. Minor features of the scene are touched up in red, presumably printed, since they are consistent in all of the cards. _William Williams_ Although not one of the earliest instrument makers in Boston, but certainly one of the more significant, was William Williams (1737/8-1792). He was the son of Capt. John Williams, a shopkeeper who died on March 22, 1748, at the age of 41, and who was buried in King's Chapel Burial Ground.[98]