INDEX 287 



EVIDENCE (and eee CONTRACT) 



parol, to vary written contract, 70 



EXPEDITION 

 bonus for, 171 



EXPENSE 



extras causing additional, 131 



EXPENSES 



of arbitration, 229 



of preparing tender, 95 



EXPERT WITNESS (see WITNESS) 



EXTENSION 



of time by engineer, 140 



EXTENSION OP TIME 



by engineer, effect of on penalties, 170 

 effect of on penalties, 170, 171 



EXTEA WOEKS (see EXTRAS) 



EXTEAS (see TABLE, p. 129) 



arbitration clause, whether it applies to, 135, 136 

 ascertainment of value of, a reference to arbitration, 211 

 assent of employer to, effect of, 134 

 authorised in writing, clause as to, 255 

 authority of engineer as to, 132 

 clause as to, 255 



for, does not authorise the substitution of one thing for 



another, 134 



does not extend to work wholly outside contract, 131 

 cut-out and resistance, whether they are, to a complete installation, 



201 



definition of, 86 



effect of final certificate on, 134, 135 

 on time conditions, 139, 140 



fees of engineer when extras create more work, 10 

 generally, 81, 82, 129 



included in certificate, 158 

 gravity of liability imposed by, 129J 

 how authorised, 132, 133 

 in case of lump-sum contract, 131 

 liability of engineer ordering, 59 

 limitation to clause as to, 133, 134 

 may have to be done in time originally specified, 139 

 omission from specification not always, 116, 117 

 ordered by employer, 134 



