191 



Resistance of bars, table on, 30. 

 Resistance of concrete and iron, 



table on, 29. 



Retaining walls, 74, 78, 101 

 Rods, cost of plain, table on, 93. 

 Roof surfaces, weights on, 82. 

 Rule for cement stucco, 102. 

 for determining negative mo- 

 ment and vertical shear, 67. 

 Fuller's, for proportioning, 



106. 

 general, for thickness of walls, 



92. 

 for wall plaster, 102. 



Safe load for, table on, 20, 21, 



22, 23. 

 for masonry footing courses, 



table on, 174. 



for rectangular beams of dif- 

 ferent woods, table on, 14, 



16, 18. 

 in tons, for piles, table on, 



163. 

 for wooden beams, explanation 



of tables of, 9. 



151. 

 posts, tables on, 20, 21, 22, 



23. 



Second coat, rule for, 102. 

 Shear in beams, details of tests, 



table on, 144. 

 for bolts in timber, table on, 



152. 



in slabs, formulae for, 54, 55. 

 vertical, rule for determining, 



Shears, bending moments and 



deflections for beams, 57. 

 Sheets of expanded metal, table, 



172. 

 Shingle concrete, table of 



strength of, 5. 

 Sieves, American and French, 



tables on, 44. 



Slabs, formulae for horizontal 



shear, 55. 

 formulae for vertical shear, 



54. 

 neutral axis of reinforced 



concrete, 56. 



Slag cement, tests on, table, 165. 

 Soils, bearing power of, table, 



Span for joists, tables on maxi- 

 mum, 24, 25. 



Specifications, Standard, for 

 cement, 119. 



Spikes, table on cut steel, 178. 



Standard mixtures, 128. 



Steel, characteristics of open- 

 hearth, table, 180. 

 tests on adhesion of concrete 



to, table, 31. 

 reinforcement, price of, 93. 



Stone, artificial, specifications 

 for, 118. 



Strength of concrete, table, 6. 

 compressive, 34, 35. 



Strength of cement, tests on ten- 

 sile, 120, 132, 173. 



Strength of mortars, effect of 

 sand on, table, 158. 



Strength of shingle concrete, 

 table, 56. 



Strength of wooden beams, 86. 



Stresses, allowable unit, for 

 timber columns, table, 92. 



Stresses, working, 47. 



Stucco, cement, rule for, 102. 



Stucco and mortar required for 

 1 cu. yd. of masonry, 102. 



System, formulae used in Ran- 

 some, 67. 



Systems of reinforcement, 7. 



T Beams, formulae for use of, 



50. 

 Tensile strength of ccim-nt, UMS 



on, 120, 132. 

 Terra cotta partitions, weights 



of, table, 83. 



