Part 48

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 ... 1792, 24, 25

Bennet, N., 131

Benson, John, 28, 155, 169