The Coconino sun., 1916-04-21
Coarse aggregate-four parts by

Coarse aggregate-four parts by volume.
 sack of cement weighing ninety four (94) pounds net shall be con sidered as having volume of one CD cubic foot.
 The densest possible mixture of the aggregate making up the concrete is desirable, and the proportions of the aggregate may be varied by order of the Superintendent of Streets when he deems it necessary, but in no case shall the total aggregate be more than seven CD parts to one CD part cement by volume.
 After the base has been placed and worked to an even grade, and before it has taken its initial set, there shall be laid the finish coat consisting of layer one inch thick, mixed in the proportion of one part cement to two (2) parts sand or screenings, and pro- perly finished.
 All walks shall have rounded edges, and be marked off in blocks of not more than twenty-five (25) square feet, with a marking tool cutting com pletely through the finish coat, and expansion joints of not less than one quarter (A) inch nor more than one- half (3) inch wide, extending through the entire thickness of the concrete to be placed as directed by the Superin- tendent of Streets.
 All street crossings, curbs and gut ters shall be constructed in accord ance with Specification No. 15, of the Town of Flagstaff, and the plans of the same on file in the office of the Town Engineer.
 All walks built by contract shall have the terms of the contractor and the year in which the walk was built stamped into the concrete surface.
 PROTECTION:
 As soon as sufficiently set, the fin ished walk shall be covered with earth, sand or some other suitable material and kept wet for a period of three days, after which it shall be cleaned and all rubbish and surplus material removed, and where the sidewalk is built on a fill having no retaining walls, embankments of earth or gravel shall be built up level with the top of the walk and extend ing out at least one CD foot from the edge of the walk.
 SECTION II That the said contemplated work or improvements, in the opinion of the legislative body of the Town of Flag staff is of more than local or ordinary public benefit, and the legislative body of said town hereby make the costs and expenses of said work or inn provement chargeable upon the dis strict; and hereby declare that the said district in the said town of Flagstaff, benefited by said work or improvement and to be assessed to pay the cost and expenses thereof, is described as follows:
 All lots, or parts of lots, fronting on or adjoining the above named streets and alleys and where the i'm provements are contemplated being made
 For more particular and fuller description of said above described district, a diagram or map showing each separate lot, piece or parcel of land in said district and the relative location of the same to the work pro- posed to be done, is hereby referred to and which said diagram or map is on file in the office of the Town En- gineer of said Town.
 The legislative body of said Town find that the public convenience re- quires that serial bonds shall be issued to represent the costs and ex- penses of said work or improvements, and so declare that serial bonds shall be issued to represent each assess ment of Twenty-Five (S25O0) Dollars or more for the costs and expenses of said work or improvements, remain ing unpaid for period of thirty (30) days after the date of the assessment warrant or five days after the deci- sion of the legislative body upon an appeal; said serial bonds shall extend over period of time ending nine (9) years from and after the second day of January next succeeding the date of said bonds, and an even annual pro- portion of the principal sum thereof shall be payable by coupon on the second day of January every year next succeeding the date of said bonds, until all of said bonds are paid. All interest shall be payable semi-annu-