Abbott, Katherine M., 98
Adams, Augustus, 99
Adams, George, 131, 134, 136
Allen, John Johnson, 148
almanac, 22, 24, 25
American Antiquarian Society, 38, 112
American Philosophical Society, 11, 12, 16, 21, 22, 24
Amherst College, 26
Annals of Salem, 43
Antiques, 43, 45
apparatus, scientific teaching, 3
astronomical observatory, 15, 24
Atwell, George, 10
backstaff, 58, 96, 139
Backus, Ebenezer, 120
Bailey, Calvin, 39
Bailey, John, 39, 51, 155, 162, 169, 170
John II, 39, 155, 161, 170
Lebbeus, 39
Baily, Joel, 21, 22, 24, 155, 164
Baldwin, Jabes, 123
Jedidiah, 123, 124, 154, 155, 160, 162, 170
Jeduthan, 94
Ballard, Mehitable, 109, 110
Samuel, 109
William, 109, 110
Baltimore American & Commercial Advertiser, 110
Banks, Sir Joseph, 140
Banneker, Benjamin, 22, 23, 24, 25, 155, 160
Barclay, Thomas, 146
Bardin, W. & T. M., 131, 141, 142, 143
barometer, 31, 32, 33
Bassett, Preston R., 74, 75, 153
Bedini, Silvio A., 29, 113
Banneker's ... Almanac and Ephemeris, For ... 179, 24, 25
Bennet, N., 131
Benson, John, 28, 155, 169
Bentley, William, 36, 37
Bethune, Nathaniel, 87
Biddle, Owen, 21, 22, 24, 155, 163
Biggs, Thomas, 59, 155, 162, 163, 170
Bion, Nicolas, 10
Blakslee, Ziba, 47, 155, 160, 170
Blundy, Charles, 29, 155, 165, 166
Boston Annual Advertiser, 99
Boston Evening Post, 27
Boston Gazette, The, 6, 27, 38, 39, 40, 82, 87, 95, 105
Bostonian Society, 42, 77, 78, 79, 99, 100, 101, 105, 153
Bouchette, Col., 146, 148
boundsgoer, 7
Bowdoin, James, 81, 86
Bowles, Hannah, 124
Samuel, 124
Thomas Salter, 75, 124, 125, 126, 127, 129, 153, 154, 155, 162, 170
Braddock, Gen., 149
Bradley, Abiah Emerly, 125
Brainard, Newton C., 5, 6
Breed, Aaron, 75, 107, 153, 155, 160, 170
Brewington, M. V., 85
Brewster, Charles W., 125
Bridenbaugh, Carl, 29, 53
Brigham, Clarence S., 38, 97
Brighton, Ray, 124
Brokaw, Isaac, 53, 155, 163
Brown, Benjamin, 94, 96
Sam, 102, 104
Brown University, 26
Bucks County Historical Society, 90, 153
Bulmain & Dennies, 51, 155, 162, 168
Burges, Bartholomew, 40, 155, 160
Burnap, Daniel, 69, 117, 118, 119, 155, 160, 166, 170
Cabot, Mrs. H. Ropes, ix
camera obscura, 28
Campbell, Colin, 146
Cape Henlopen, 21, 22, 24, 58
Carey, W., 51
Caritat, H., 51, 155, 162, 165
Carter, Henry, 28
Chandlee, Benjamin, Jr., 54, 155, 161, 166, 170
Benjamin, Sr., 54
Edward E., 55
Ellis, 55, 155, 161, 166, 170
Ellis, & Bros., 54, 55, 155, 161, 170
Goldsmith, 54, 55, 56, 57, 155, 165, 166, 170
Isaac, 55, 59, 155, 161, 170
John, 55
Chandlee & Bros. [John and Isaac Chandlee], 161, 166, 170
Chandlee [Benjamin, Jr.] & Sons, 54
Chapin, Howard M., 43, 44, 45
Charleston Evening Gazette, 31
Cheney, Benjamin, 67
Chester County Historical Society, 24, 31, 32, 54, 55
Chronicle [E.A.I.A.], 6
Churchill, Frank C., 126, 129
Clark, Robert, 31, 165, 168, 169, 170
William, 152
Clark County Historical Society, 60
Clarke, Martha, 85
Sarah, 85
William, 85
clockmaker, 10, 11, 15, 16, 19, 21, 24, 29, 30, 31, 34, 39, 40, 45, 47, 49, 54, 57, 59, 62, 63, 67, 117, 118, 123, 124, 125, 129, 146
Clough, Jere, 75, 105, 154, 155, 161, 170
Joseph, 99, 105
Cohen, I. Bernard, 40
Cole, Benjamin, 149, 150
Collison, Peter, 58
Columbia Centinel, 98, 99
compass, 53, 54, 63, 152
compass card, 75, 76, 82, 83, 90, 92, 102, 104, 106, 107, 113, 115
Comstock Memorial Collection, 139
Condorcet, Marquis de, 24
Condy, Benjamin, 59, 155, 163, 167, 168
Connecticut Courant, 47
Connecticut Gazette, 138
Emery, Samuel, 43, 156, 164, 167, 168
Endicott, John, 84
equal altitude instrument, 20
Evans, David, 146
George, 31, 62, 156, 163, 167
Ewer, Sarah, 129
Fairchild, Adah, 49
Fairman, Gideon, 42, 156, 157, 162, 167, 168(see also Hooker and Fairman)
Farmer's Museum, 73, 153
Felt, Joseph B., 43, 94
Ferguson, James, 22
Fisher, Joshua, 58
Martin, 62, 156, 164, 166
Fitch, Eunice,

98
John, 62
Fitts, Rev. James Hill, 129
Flint, Abel, 10, 72
Folger, Nathaniel, 45
Peter, 40, 156, 162
Walter, Jr., 40, 156, 162, 165
Folwell, John, 16
Footes, Nathaniel, 4, 5
Ford, George, 63, 156, 163, 168, 170
George, II, 63, 156, 163, 168, 170
Fosbrook, W., 31, 156, 162, 169
Franklin, Benjamin, 40, 53, 58
Franklin Institute, 40, 89, 90, 139, 153
Frizell, John, 81
Frye, Joseph, 90, 91, 137, 138, 139
Joseph, Jr., 91, 137
Fryeburg, 90, 137, 138
Gardner, Will, 40
Gatty, Joseph, 33, 156, 162, 164, 166
Gerry, Capt., 27
Gilbert, Joseph, 80, 81
Mary, 81
Gillingham, Harold E., 30, 33, 59, 61, 66
Gilman, Benjamin C., 34, 156, 162, 166, 167
Gilmur, Bryan, 63, 156, 164, 166, 167
Gilpin family, 54
glass and thermometric instruments, 53, 59, 62
globes, 8, 34, 35, 36, 53, 131, 140, 142, 143
Goddard & Angell, 22
Godfrey, Thomas, 58, 59, 88, 156, 164, 168
Godfrey's quadrant, 28
Gottesman, Rita S., 33, 51, 66
Gould, John, 30, 76, 156, 164, 168, 170
Graham, George, 145
Grainger, Samuel, 6, 156, 161
Greene, Joseph, 96
Peter, 109
Greenleaf, Stephen, 37, 38, 157, 161, 167
Greenough, David, 86
Elizabeth, 85
Jerusha, 85
John, 85
Newman, 85
Thomas, 69, 75, 85, 86, 87, 88, 89, 90, 92, 93, 137, 138, 153, 157, 160, 165, 167, 169, 170
Thomas, Dr., 88, 89
William, 86, 87, 88, 89, 157, 161, 170
Greenwood, Dr. & Mrs. Arthur, 150
Isaac, Jr., 38, 157, 161, 167
Isaac, Sr., 38, 39, 157, 161
Grew, Theophilus, 8, 157, 164
Griffith, Nathaniel S., 125
Griffith & Bowles, 124
Gross, Huldah, 84
Thomas, 84
Gruchy, Thomas James, 87
gunnery calipers, 40
Gurley, W. & L. E., 43, 118
Gurnet lighthouse, 115, 116
Gutridge, Anna, 84
Guyol, Philip N., 82
Hadley, James, 58
Hadley quadrant, 66, 82
Hagger, Benjamin King, 109, 110, 111, 154, 157, 160, 161, 167, 170
John W., 110
Mary, 43
William Guyse, 43, 44, 72, 109, 110, 139, 157, 158, 164, 169
William King, 109
Hall, Andrew, 98
Stephen, 86
Halley, Edmond, 58
Halsie, Hannah, 84
James, I, 4, 80, 81, 157, 161
Nathaniel, 80, 84
Halsy, Anna, 81
James, II, 75, 80, 81, 82, 84, 85, 154, 157, 161, 167, 170
John, 80, 81, 82, 157, 167
Joseph, 75, 80, 81, 82, 83, 153, 157, 161, 170
Rebecca, 80
Sarah, 80
Ham, George, 125
Hannah, 125
Henry, 125
James, 65, 157, 163, 164, 167, 169
James, Jr., 66, 164, 167, 169
Supply, 125
William, 125
Hamilton, Alexander, 58, 65
Hamlin, William, 44, 45, 46, 76, 157, 164, 165, 167, 169
Hanks, Benjamin, 47, 157, 160, 170
Truman, 47, 157, 160, 170
Harland, Thomas, 10, 29, 30, 117, 123, 157, 160, 166, 170
Harvard University, 8, 26, 35, 40, 41, 95, 99
Hayes, Fanny, 49
Rutherford B., 49
Heckewelder, John, 49
Heisely, Frederick A., 57, 58, 61, 157, 160, 163, 166, 167, 170
George, 57, 157, 163, 166, 167, 170
Helyer, Joseph, 94, 96
Polly, 98
Henry Ford Museum, 107
Hicks, Edward, 31, 32
Hannah, 31, 32
Hillman, George, 109
William, 109
Hindle, Brooke, 8, 15, 58
Hinton, William, 66, 76, 157, 163, 167
Historical Society of Pennsylvania, 55
Hoadley, Silas, 68
Hobby, Sir Charles, 6
Hoff, Catherine, 57
George, 1 class="pginternal">56
Lyon, Mrs. Eliza R., 142
Madison, James, 19
Magee, D. F., 63
magic lantern, 27
magnets, 63
maps, 7, 53
Mariner's Museum, 107, 108, 153
Maryland Historical Society, 23
Maryland Journal and Baltimore Daily Advertiser, 21
Maskelyne, Nevil, 142, 146
Mason, Charles, 24
Mason-Dixon Line, 19
Massachusetts Historical Society, 80, 82, 83, 84, 86, 87, 94, 96, 102, 104, 109, 116, 117
Massachusetts Magazine, 40
Matchett's Baltimore Directory, 110
Mather, Rev. Cotton, 82, 84
Mathews, Catherine Van C., 21
Maupertius, de, 146
Maverick, Jotham, 93, 94

Samuel, 94
Mayer's Tables, 22
McCabe, William, 49
McHenry, James, 22
Memoirs of the Academy of Arts and Sciences, 40
Mendenhall, Thomas, 63, 158, 163, 166, 168
Mercer Museum, 90, 153
Merrill, P., Esq., 126, 129
Miller, Aaron, 53, 158, 162, 166, 171
Mirick, McAndrew, 87
Mitchell, Edwin Valentine, 36
Maria, 40
Moore, S., 10
Moor's Indian Charity School, 72
Morey, John, 113
Morris, M., 53, 158, 163
Morton, Charles, 82, 83
Mount Vernon, 54, 57, 144
Mount Vernon Ladies Association of the Union, 57
Nantucket, 40
National Maritime Museum, 150
Newell, Andrew, 106, 107, 154, 158, 161, 168, 169, 171
Charles, 107, 161
Joseph, 107, 161
New Hampshire Historical Society, 81, 82, 153
New York Daily Advertiser, 28, 33, 53
New York Gazette, 28, 51, 53, 66
New York Historical Society, 33, 39, 66
New York Mercury, 66
New York Packet, 29, 51, 53
Noble, James, 81
Norwich Courier, 30
Norwood, R., 10
Odell, 146
Ohio Historical Society, 55, 61
Ohio State Museum, 16, 51, 52, 55, 59, 60, 61
Old Sturbridge, 90, 107, 153
optical instruments, 26, 28
orrery, 15, 16, 39, 40, 41
Osborn, John, 96
Paine, Robert Treat, 82
Thomas, 82, 83
Palmer, Brooks, 39, 47, 63, 123
Parker, N., 153
Parmele, Ebenezer, 67
Partridge, Marty, 81
Paul, Amos, 129
Temple, 129
Peabody Museum, 85, 96, 97, 139, 153
Peale, Charles Wilson, 14
Pease, Elizabeth Folger, 45
Paul, 45, 158, 164, 169
Pell, Edward, 84
Pemberton, James, 30
Pennsylvania Evening Herald, 33
Pennsylvania Magazine, 30
Pennsylvania Packet, The, 15
Pennsylvania, University of, 8, 15, 16
perpetual log, 51
Phillips, John M., 107
Jonathan, 99
Mrs. Mary W., ix
Pierce, Abner, 139
Pierpont, John, 68
Pitt, William, 24
Pitts, James, 86
planetarium, 36
planisphere, 51
Platt, Adah, 49
Augustus, 49, 52, 158, 163, 168, 171
Benjamin, 49, 51, 158, 160, 162, 163, 167, 171
William Augustus, 49
Plymouth Journal & Massachusetts Advertiser, 112, 113
Pope, Joseph, 39, 41, 158, 161, 167
Potter, John, 43, 158, 161, 171
Potts, Thomas, 12
W. L., 158, 163
Power, Alexander, 7
Price, Derek J. de Solla, ix, 3, 130
Priestley, Frances D., 140, 142
Dr. Joseph, 131, 140, 141, 143
Prime, Alfred Coxe, 29, 31, 63
Prince, John, 24, 158, 161, 162
Nathan, 8, 158
Princeton University, 15
Pryor, Thomas, 59, 159, 164, 168
Quincy, Abraham, 96
Rathborne, Aaron, 9, 10
Ratsey, Widow, 65
Revere, Paul, 38, 39, 40, 41, 42, 97, 113, 116, 117, 159, 161, 168
Reynolds, John E., 131, 134
William, 134
Reworth, Captain, 87
Rhode Island Historical Society, 45, 46, 139
Riley, Stephen T., ix
Ritchie & Co., Bern C., 139
Rittenhouse, Benjamin, 11, 15, 16, 142, 144, 159, 164, 165, 171
David, 11, 12, 14, 15, 16, 20, 21, 47, 62, 142, 144, 145, 146, 147, 159, 163, 164, 165, 171
Rittenhouse & Evans [David Rittenhouse & David Evans], 139, 146, 148, 159, 171
Roberts, Gideon, 67
Nathaniel, 85
Romaine, Lawrence, 88
Royal Pennsylvania Gazette, 59
Royal Society of London, 58
Rutgers University, 26
Salter, Titus, 124
sand glasses, 59
Savage, James, 4, 80, 84
Schiff, Henry G., 107
Schoen , H. H., 7
Seybold, R. F., 7
Shampeny, Worth, 153
Shepley Library, 139
Sheppard, Jack, 29
Shillcock, Hannah, 94
Joyce, 94
Robert, 93
Shoemaker, Mrs. Francis D., 140
Shrimpton, Shute, 87
Sibley, Asa, 120, 121
Sibley & Marble [Clark Sibley and Simeon Marble], 47, 159, 160, 167, 168
Sign of the Cross-Knives and Gun, At the, 53, 76
Sign of "Hadley's Quadrant," At the, 66, 76
Sign of the Hand & Beam, At the, 38, 76
Sign of the Mathematical Instruments, At the, 43
Sign of the Quadrant, At the, 30, 45, 76, 107
Sign of the Seven Stars, At the, 62, 76
Sission, Jonathan, 27
Skillin, John, 77, 78, 79
Simeon, 39, 41, 78
Sloane, Sir Hans, 58
Smart, C. E., ix, 118
Smith, Cordial, 159, 160
Society for the Promotion of Useful Arts of Albany, 21
Solebury, 19
Sommer, Widow Balthaser, 28, 159, 163, 169
South Natick Historical Society, 104, 153
Sower, Christopher, 63, 159, 163, 164, 167, 168
Stargazers' Stone, 24
Steele, A.P., 60, 61
Stevenson, D. Alan, 115
Stiles & Storrs [Nathan Storrs and Jedidiah Baldwin], 123, 159, 162, 171
Stiles & Baldwin [Jedidiah Baldwin], 123, 159, 162, 167, 171
Whiting, Alfred F., 126
Whitney, John, 30, 159, 164, 168, 169
Thomas, 30, 152, 159, 168, 169, 171
William & Mary College, 150
Williams, John, 93
Marvin, 120
Samuel, 26
Temperance, 120

William, 77, 78, 93, 94, 95, 96, 97, 98, 159, 161, 168, 169, 171
Williams College, 26
Willis, Arthur, 4, 5, 6, 159
Wilson, James, 8, 34, 35, 159, 165
Winthrop, John, 26
Wistar, Casper, 53
Wistar, Richard, 53, 159, 162, 166
Witt, Christopher, 62, 159, 163, 167, 168
Wollaston, Rev., 142
Wood, John, 63, 159, 164
Woods, Timothy, 25
Wright, Captain, 58
Yale University, 105, 114, 125, 126
Art Gallery, 106, 107, 153
Streeter Collection of Weights and Measures, 105, 114, 115, 117, 125, 126, 153
Yardley, Thomas, Jr., 60
Youle, James, 53, 76, 159, 163, 169
John, 53, 159, 163, 169
Young, Daniel, 113
Sarah, 113
zenith sector, 114, 145, 146, 147