used by the contractor in the carrying out of the work. Thus the principal may wish to use a particular kind or quality of material which he does not wish to describe specifically in the specifications, or which, if described, he can not well assure himself that the contractor will furnish. Especially is this the case with such materials as can not be clearly identified by ordinary methods of inspection; as, for instance, various kinds of paints, cement, iron and steel, paving brick, besides a great number of specialties in the line of manufactured articles and machines. Or, the contractor may not be able to purchase this material on as favorable terms as the principal, because of the greater risk involved in the sale of this material when the contractor must be looked to for payment. Thus, when the bidders are informed that the principal will furnish materials which would otherwise cost the contractor large sums of money, many contractors of small means would be encouraged to bid upon the work, who otherwise would not be able to handle it. For these and other reasons, therefore, it is frequently wise for the principal to purchase the material and turn it over to the contractor for use in the work. 71. Proposal for Building a Dam, Spillway, Levee, Outlet Tunnel, and Overflow Chamber. TO THE FIRST NEW MEXICO RESERVOIR AND IRRIGATION CO., ROSWELL, NEW MEXICO. Gentlemen:-The undersigned propose to do all the work and furnish all of the material in accordance with the printed form of contract and specifications, a copy of which is herewith annexed, and bind, on the acceptance of this proposal, to enter into and execute a contract in the form of said enclosed specifications and contract for the execution of said work at the prices named below, to wit: Excavation: (a) Earth, including all forms of soil, or clay, per cubic yard (b) Gravel and sand, including all forms and combinations of these materials, per cubic yard (c) Loose rock in open cut, including all kinds of loose rock not requiring blasting, per cubic yard Fill: (d) Solid rock in open cut, including all kinds of rock requiring blasting, per cubic yard (e) Rock in tunnel, including all tunnel work to the outer line of the lining wall, if such be required, otherwise to the lines of the drawings, per cubic yard (a) Earth, clay, gravel or sand, not rolled, per cubic yard (6) Same materials spread in courses and rolled dry, per cubic yard (c) Same materials spread in courses, dampened and rolled, per cubic yard (d) Same materials spread in courses, pulverized, harrowed, wet down and rolled thoroughly, per cubic yard (e) Clay and gravel mixed in layers, harrowed, wet down and rolled thoroughly (clay puddle), per cubic yard (f) Loose rock dumped or thrown in as in temporary dam, per cubic yard (g) Rip rap laid on face of dam, per cubic yard (h) Facing rock laid dry with close joints for distance. of 4 inches from surface and rammed, per cubic yard Masonry: (a) Rubble masonry laid in Portland Cement Mortar, as described, per cubic yard (6) Masonry lining of tunnel, as described, per cubic yard, actual volume (c) Dimension stone masonry, laid in Portland Cement Mortar, as described, per cubic yard Enclosed is a certified check for five hundred dollars; which sum is to be forfeited to the First New Mexico Reservoir & Irrigation Co. if the party or parties making this proposal fail to enter into contract, with approved securities, within fifteen days after the contract is awarded to said party or parties. ST. LOUIS, Mo., " " Respectfully, (Signature and address of contractors.) -1890. NOTE.-Each bid shall be placed in a sealed envelope addressed to indorsed "Proposal for building Dam, etc." The First New Mexico Reservoir & Irrigation Co. reserves the right to reject any or all bids. J. & F. 72. Proposal Bond. In lieu of a cash deposit accompanying the bid as a guarantee of good faith and of intention to enter into contract, if the same be awarded to the party, a bond may be received, duly signed and certified, which will insure either the signing of the contract, or the payment of such damages as may result from a failure to sign. These damages would usually be measured by the difference between the amount named by the party furnishing the bond, and the sum for which the contract might finally be let, and this is usually named as the amount of the forfeiture under the bond. It is the usual custom of the United States Government to require a bond of this sort rather than a cash deposit. It is evidently a less hardship upon the contractor to furnish such a bond. The following is the form of this document as used by the United States Government: PROPOSAL BOND OR GUARANTY. We, of in the State of of and of in the State hereby guarantee and bind ourselves and each of us, our and each of our heirs, executors and administrators, to the effect that if the bid ofherewith accompanying, dated- -, 1894, for furnishing all materials and labor, and constructing the Power House and Office Building for the 800-ft. Lock at St. Mary's Falls Canal, shall be accepted, in whole, or in part, within sixty (60) days from the date of the opening of proposals, the said bidder-, -will, within ten (10) days after being notified of such acceptance, enter into a contract with the United States in accordance with the terms and conditions of the advertisement, and will give bond with good and sufficient sureties for the faithful and proper fulfillment of the same. And in case the said bidder— shall fail to enter into contract within the said ten (10) days with the proper officer of the United States, and furnish good and sufficient bond for the faithful performance of the same according to the terms of said bid and advertisement, we and each of us hereby stipulate and guarantee, and bind ourselves and each of us, our and each of our heirs, executors and administrators, to pay unto the United States the difference in money between the amount of the bid of the said bidder-, and the amount for which the proper officer of the United States may contract with another party to furnish said materials and labor and construct the Power House and Office Building as specified, if the latter amount be in excess of the former, for the whole work covered by the proposal. WITNESSES: I, SS. one of the guarantors named in the within guaranty, do swear that I am pecuniarily worth the sum of forty thousand dollars, over and above all my debts and liabilities. Before me, [Signature of Guarantor]. [Signature of Officer administering oath, with seal, if any] STATE OF County of I, one of the guarantors named in the within guaranty, do swear that I am pecuniarily worth the sum of forty thousand dollars, over and above all my debts and liabilities. Before me, [Signature of Guarantor] [Signature of officer administering oath, with seal, if any.] I,and CERTIFICATE. do hereby certify that the guarantors above named, are personally known to me, and that, to the best of my knowledge and belief, each is pecuniarily worth, over and above all his debts and liabilities, the sum stated in the accompanying affidavit subscribed by him. [Signature of certifying official.] NOTE.-The certificate may be given separately as to each guarantor, and modified accordingly. U. S. ENG. CORPS. ENGINEERING SPECIFICATIONS. 73. Engineering Specifications Defined. Engineering specifications consist of a series of specific provisions each one of which defines and fixes some one element of the contract. These clauses relate, in general, First: To the work to be done. Second: the contract. To the business relations of the two parties to In the first sense, the specifications supplement and explain the plans (if there be any) and define the character of the materials and the methods to be employed on the work, or if unaccompanied by plans they embody the principles and rules in accordance with which the plans must be drawn and the work executed. In this sense the specifications enable the bidder to estimate the cost of the proposed work and after the contract is let they serve as the rules of inspection and acceptance of such work. In the second sense the specifications define the rights and duties of the two parties to the contract to each other and embody proper provisions for changes in the plans, and for the settlement of disputes which may arise; they also describe the conditions of payment, acceptance, etc., etc. 74. Classes of Specifications. There may be said to be three general classes of engineering specifications: (a) Specifications accompanying complete detail plans: (b) Specifications accompanying a general plan only. (c) Specifications unaccompanied by any plan, and commonly known as General Specifications. All of these classes of specifications are in common use and each has its own particular sphere of usefulness. (a) Thus when the design is novel, or when the engineer wishes a particular design carried out, he usually prepares full |