Contents— Continued 



Page 



Instruments of Wood 65 



The Use of Wood 65 



Surviving Instruments 69 



Compass Cards 75 



Trade Signs 75 



The Makers 80 



Joseph Halsy 80 



James Halsy II 84 



Thomas Greenough 85 



William Williams 93 



Samuel Thaxter 97 



John Dupee 104 



Jere Clough 105 



Andrew Newell 106 



Aaron Breed 107 



Charles Thacher 107 



Benjamin King Hagger 109 



Benjamin Warren 112 



Daniel Burnap 117 



Gurdon Huntington 118 



Jedidiah Baldwin 123 



Thomas Salter Bowles 124 



The New Era 130 



The National Collection 131 



Appendix 153 



Surviving Wooden Surveying Compasses 153 



Mathematical Practitioners and Instrument Makers 155 



Bibliography 172 



Index . . . . ; 177 



Vlll 



