APPENDIX B. 997 



promise to enter into shall be, in its general provisions, in the form adopted and in 

 general use by the Engineer Department of the Army, blank forms of which can be 

 inspected at this office, and will be furnished, if desired, to parties proposing to put 

 in bids. Parties making bids are to be understood as accepting the terms and conditions 

 contained in such form of contract. 



_ 23. The sureties, if individuals, are to make and subscribe affidavits of justification 

 on the back of the bond, to the contract, and they must justify in amounts which shall 

 aggregate double the amount of the penal sum named in the bond. 



24. Bidders are invited to be present at the opening of the bids. 



GENERAL CONDITIONS. 



25. A copy of the advertisement, and of the specifications, instructions, and condi- 

 tions will be attached to the contract and form a part of it. 



26. The contractor should, within ten days from the award of the contract, furnish 

 the Engineer office with the post-office address to which communications should be sent. 



27. Transfers of contracts, or of interest in contracts, are prohibited by law. 



28. The contractor will not be allowed to take advantage of any error or omission 

 in these specifications, as full instructions will always be given should such error or 

 omission be discovered. 



29. The decision of the Engineer Officer in charge as to quality and quantity shall 

 be final. 



30. Payments will be made on monthly estimates for the work done during the 

 month, unless otherwise herein specified. A percentage of ten (10) per centum will 

 be reserved from each payment until the completion of the contract. 



31. Unless extraordinary and unforeseeable conditions supervene, the time allowed 

 in these specifications for the completion of the contract to be entered into is consid- 

 ered sufficient for such completion by a contractor having the necessary plant, capital, 

 and experience. If the work is not completed within the period stipulated in the con- 

 tract, the Engineer Officer in charge may, with the prior sanction of the Chief of 

 Engineers, waive the time limit, and permit the contractor to finish the work within 

 a reasonable period, to be determined by the said Engineer Officer in charge. Should 

 the original time limit be thus waived, all expenses for inspection and superintendence 

 and other actual loss and damages to the United States due to the delay beyond the 

 time originally set for completion shall be determined by the said Engineer Officer in 

 charge and deducted from any payments due or to become due to the contractor. 

 Provided, however, that the party of the first part may, with the prior sanction of the 

 Chief of Engineers, waive for a reasonable period the time limit originally set for com- 

 pletion and remit the charges for expenses of superintendence and inspection for so 

 much time as in the judgment of the said Engineer Officer in charge may actually have 

 been lost on account of unusual freshets, ice, rainfall, or other abnormal force or violence 

 of the elements, or by epidemics, local or State quarantine restrictions, or other 



