| Assembling of turntables in shops | 200 | |
| Association of inspectors, proposed | 283 | 287 |
| Assumed uplift for highway draw-spans | 239 | |
| Assumed uplift loads for draw-spans | 184 | |
| Assumed upward dead-load reaction in draw-spans | 122 | |
| Assumed upward-reaction method | 270 | |
| Attachment of column feet | 148 | |
| Attachment of suspended spans to cantilever-arms | 65 | |
| Author's instructions to field-engineers | 288 | |
| Author's standard instructions for checking drawings | 340 | |
| Author's standard instructions to metal-inspectors | 284 | |
| Auxiliary triangulation-hubs | 324 | |
| Avoidance of skew-bridges | 18 | |
| Avoidance of torsion | 20 | |
| Axiom in architecture, fundamental | 42 | |
| Bad inspection | 281 | |
| Balanced loads for draw-spans | 184 | |
| Ballast tanks for Halsted Street Lift-Bridge | 110 | |
| Ballot on The Compromise Standard System of Live Loads, etc. | 267 | |
| Bascule bridges | 105 | |
| Base-line measurements | 317 | |
| Base-lines, lengths of | 322 | |
| Base-lines, location of | 321 | 322 |
| Batten-plates | 174 | 232 |
| Batter for piers | 305 | |
| Batter for trestle columns | 87 | |
| Bearing-plates for plate-girder spans | 169 | |
| Bearing-plates over drums | 200 | |
| Bearings for arches | 289 | |
| Bearings upon Masonry | 156 | |
| Beautifying bridge-designs without increase of cost | 46 | |
| Beauty of proportion and mathematics | 44 | |
| Bed-plates | 177 | |
| Bed-rock, preparation of, to receive masonry | 291 | |
| Bending due to weight of member | 159 | |
| Bending moments on pins | 157 | |
| Bending moments on top chords | 158 | |
| Bending on inclined end posts | 159 | |
| Bending on inclined end posts of highway bridges | 226 | |
| Bending tests | 248 | |
| Bent eyes | 178 | |
| Benzine for washing drawings | 346 | |
| Bessemer steel | 245 | |
| Best kinds of metal paint | 10 | |
| Best lengths for tape-lines | 318 | |