Contents 



Page 



Acknowledgments ix 



Preface xi 



The Tools of Science 3 



Philosophical and Practical Instruments 3 



The Need for Instruments 6 



Colonial Training in Instrument Making 8 



The Mathematical Practitioners 15 



The Rittenhouse Brothers 15 



Andrew Ellicott 19 



Owen Biddle 21 



Benjamin Banneker 22 



Joel Baily 24 



Reverend John Prince 24 



Amasa Holcomb 26 



Instruments of Metal 27 



Pre-Revolutionary Immigrant Makers 27 



Post-Revolutionary Immigrant Makers 30 



Native American Makers 33 



New Hampshire 34 



Vermont 34 



Massachusetts 36 



Rhode Island 43 



Connecticut 45 



Ohio 49 



New York 51 



New Jersey 53 



Delaware 54 



Maryland and Virginia 54 



Pennsylvania 58 



Vll 



