And it is further expressly understood and agreed that no claim whatever shall at any time be made upon the United States by the party or parties of the second part for or on account of any extra work or material performed or furnished, or alleged to have been performed or furnished, under or by virtue of this contract, and not expressly bargained for and specifically included therein, unless such work or materials shall have been expressly required in writing by the party of the first part or his successor, the prices and quantities thereof having been first agreed upon by the contracting parties and approved by the Chief of Engineers. And it is also further agreed by the parties of the second part, as required by the 14th section of the act of Congress approved July 17, 1862, that neither this contract nor any interest therein shall be transferred to any other party or parties, and that any such transfer shall cause the annulment of the contract as far as the United States are concerned. Tennessee River improvement.—Muscle Shoals Canal. U. S. ENGINEER OFFICE, Chattanooga, Tenn., Feb. 7th, 1876. Sealed proposals in duplicate will be received at this office until noon on Wednesday, March twenty-second (22), 1876, for the construction of locks in the Muscle Shoals Canal, Tennessee River, between Florence and Decatur, Alabama. Specifications and forms for proposals will be furnished on application to this office. WALTER MCFARLAND, Major of Engineers. SPECIFICATIONS. The locks for whose construction bids will be received are numbers 2, 3, 4, 6, and 7 (see Addendum), but awards will be made for the construction of only so many of these, beginning with number 2, as the amount of funds available for this purpose, and the prices bid, may warrant. The locks are to be three hundred (300) feet long between mitre sills,-sixty (60) feet wide, and of five (5) feet lift,-with chamber walls about thirteen feet high. The lock pit excavations will be about four hundred (400) feet in length by eighty (0) feet in breadth,-and are to be carried down to the limestone rock substratum, and into it where required. Timber and concrete floors will be used where the substratum is so cracked and faulty as to render them necessary. The entire work must be executed in accordance with the working drawings, which shall be furnished from time to time as they are needed. Each bid offered must relate to one lock only, designating it by its number, and must cover the cost of furnishing all material and doing all the work called for by these specifications, viz: 1. Earth Excavation.-Price per cubic yard measured in excavation-this must cover the preparation of the site by clearing and grubbing, and the excavation, removal, and deposit where directed, of all earthy and stony material except rock which cannot be removed without first breaking or blasting it. 2. Rock Excavation.—Under this head is to be included only such rock as cannot be readily moved without first breaking or blasting it. Its price must be per cubic yard measured in bed-and must cover the cost of excavating, removing and depositing where directed, as well as the cost of any necessary preliminary clearing or preparation of site. 3. Timber.-Price per thousand (1,000) feet board measure in place-this must cover the furnishing, preparing or fitting, and fastening in place of all timber and plank required in the work. 4. Wrought Iron Clamps, Spikes, Bolts, Nuts, and Washers.-Price per pound driven or placed-to cover cost of furnishing and putting in place, as well as any work necessary for the accomplishment of this-as boring or drilling. 5. Concrete.—Price per cubic yard in place-to cover the cost of furnishing all the material of which it is to be composed, and preparing, mixing, moving and depositing in place, as may be required. 6. Cut Stone.-Price per cubic yard, set; to cover the cost of furnishing, cutting, and setting, and supplying mortar, and building in such iron or wood work as may be furnished by the United States for that purpose. 7. Rubble.-Price per cubic yard, laid; to cover the cost of furnishing, shaping or dressing and laying in mortar, supplying the mortar, gronting the work where required, and building in posts or other material furnished by the United States for that purpose. 5. Cast Iron Dowells.-Cost per pound, set; which in addition to the furnishing is to over the cost of the necessary drilling, fitting and cementing. (See page 5.) The lock-pits must be freed from water before the concrete or masonry work is begun, and must be kept so during the progress of the work. Any concrete or masonry laid in water must be taken up by the contractor at his own expense, and no payments of any kind will be made him until this is done. Every expense which it may be necessary to incur in order to carry on the work in accordance with the plans and specifications-such as supplying tools, material, workmanship, labor, scaffolding, derricks, machinery, constructing coffer or other dams, pumping, bailing, draining, removing rubbish and unused materials while the work is in progress and after its completion, et cetera, must be borne by the contractor, and should be covered by the prices bid for excavation, masonry, or concrete, as no separate allowance will be made, under any circumstances, for such expenditures. Material will be paid for only when it is permanently placed in its final position in the work and is then approved and accepted by the engineer in charge. Mere delivery of material at the work, or labor of any kind expended upon it, shall not entitle the contractor to any payment therefor. The contractor must be responsible for the protection of the work until his contract is closed, and must repair any damage done to it by freshets, rains, overflows, et cetera, in such manner as the engineer in charge may direct, but at his own expense. Before receiving his final payment, he must, at his own expense, remove all dams, and other material and work temporarily used by him under his contract, and must secure the work from the weather as may be required. MATERIALS AND WORKMANSHIP. All materials and workmanship must be such as shall be approved by the engineer in charge, and must be carefully examined either by himself or by a duly authorized inspector acting for him. Rejected material must be removed at once from the work and vicinity. Masonry not approved must be taken down. No payment will be made for any material or work so rejected or disapproved. Timber and Plank.-To be of long leafed pine, sound, straight, and free from cracks, sapwood, loose knots or imperfections of any kind, and laid and fastened as may be required. Iron, Wrought and Cast.-To be of good quality American iron, free from defects. Bolts and clamps to be of best quality. LAYING FOUNDATIONS AND FLOORS. Where these are used trenches are to be cut in the rock bottom for the whole length of the walls, to receive eight rows of yellow pine timber, twelve (12) inches square, laid longitudinally and bolted at intervals to the rock bottom. The trenches must be cut so that these timbers shall lie horizontally and shall be supported throughout their entire length. Transverse timbers of the same wood, with the same cross section, shall be laid upon the longitudinal timbers at right angles with them, and six (6) inches apart in the clear; and shall be bolted to the longitudinal timbers and to the intermediate masses of rock. The spaces between these timbers shall be filled with concrete well rammed. The floor will consist of two layers of two (2) inch yellow pine plank, laid and spiked as may be directed. Cut Stone.-Must be of perfectly sound, strong and durable quality, free from seams, flaws, cracks, scales, earthy matter or other defects, and not easily injured by the action of water, air, or frost, and the blocks should be of the same general color and appearance. Facing.-To be laid in regular courses, headers and stretchers; no course to have a height less than fifteen (15) inches or greater than two (2) feet. Each stone to have at least one-third more bed than rise. Stretchers to be not less than three-and-a-half (34) feet, or more than six (6) feet in length, and to break joints by at least a foot with the stretchers upon which they rest. Headers to be either six (6) feet in length or "throughs"-to be not over twelve (12) feet apart in each course, and to be so placed as to fall near the middle of the interval between two adjacent headers of the course next below. Beds to be cut parallel to each other and to the quarry bed. perpendicular to the beds and to the exposed face. Vertical joints to be Beds and vertical joints to be dressed to true planes without projections, cavities, or wind; the former eighteen (18) inches, and the latter ten (10) inches back from the exposed face, to admit of being set with three-eighths () inch joints. The remaining parts of these surfaces to be broken or pointed off smoothly to admit of joints not exceeding one inch in thickness. Exposed faces to be dressed with care-cut true and even, with clean angles and perfect edges, and without marking or spalling. The hollow quoin must be formed by a single stone in each course, three (3) feet wide and seven (7) feet long, laid alternately as headers and stretchers. The stones in each course at the angles of the head bay and tail bay, to be not less than three (3) feet by six (6) feet, laid as headers and stretchers, and dowelled to the stones above and below them by cast-iron dowells one and a half (14) inches in diameter and eight inches long. The facing of the mitre sill wall shall have its bed and vertical joints dressed throughout to true planes, to lay a quarter (4) inch joint, the courses to be dowelled together, and the exposed face to be left rough with the exception of a draft line one inch wide around its edge, cut with great exactness. The coping is to be eighteen (18) inches in thickness, and each stone must be at least three (3) feet wide, and long enough to stretch across the top of the wall, except where it is buttressed. Each must have a bed whose area is not less than fifteen (15) square feet, must be dressed true on all sides, and must be dowelled to the course below it and clamped to the coping stones next to it, as may be directed. The dowells to be of cast iron, twelve (12) inches long and two (2) inches in diameter; the clamps, of wrought iron, not less than eighteen (18) inches long, one and a half (14) inches broad, and three quarters (1) of an inch thick, to be let in flush with the surface, and to enter the coping about four (4) inches. The cement for fastening the dowells and clamps to consist of lead and antimony. The upper edge of the coping, next the lock chamber, will be rounded to a radius of three inches. The foot of the coping will be set even with the exposed edge of the upper course of masonry, and this exposed angle will be beveled off for a width of one and a half (14) inches, and to an angle of sixty (60) degrees. Rubble.-Must consist of strong, sound, and durable stone, free from cracks, scale, or earthy matter; and where it is to be exposed to the action of the elements, it must be of a kind not readily disintegrated by them. When rubble backing is used, the coursing may be irregular, except where it unites with face work, in which case its horizontal joints must course with those of the face work as far as may be required. No stone shall have a less rise than ten (10) inches, nor a less width of bed than sixteen (16) inches, and the area of its bed should not fall below four (4) square teet. A stone of less rise or less bed may, however, be used occasionally as a leveller or to fill a small space. The stone to be used in rubble walls must be hammered or pointed down to good fair surfaces, square with each other, and to lay with horizontal joints not exceeding one inch. The stone should bond together not less than six (6) inches; and at intervals not greater than ten (10) feet, headers from four to five feet in length should be inserted, falling over the intervals between the headers of the course immediately beneath. Where the rubble and cut-stone facing unite, the rubble should set back an inch and a half, and the projecting angle of the cut stone facing should be beveled or chamfered to an angle of forty-five (45) degrees. LAYING MASONRY. All the cutting, dressing, or drilling necessary for fitting a stone for the position which it is to hold in the work, must be done before it is brought upon the wall, and it must then be lifted by a crane or derrick, and lowered into its place without shock to the masonry. Rolling or moving it while on the wall will not be allowed, and every stone whose bond or set is disturbed by shocks, however produced, must be taken up and reset at the expense of the contractor. Every stone, both of the facing and of the backing, will be set or laid in a full bed of mortar, to be made as hereafter described; and very great care will be taken that the vertical joints are thoroughly filled with the same, placed by the trowel, before the next course above is set or laid. Every surface which is to come in contact with mortar must be freed from dust and dirt, and thoroughly wet just before the mortar is applied. Each stone, when permanently placed, must rest upon its quarry bed. Not more than three courses in either facing or backing are to be unfinished at a time; and the backing and filling, whether of rubble or concrete, are to go up with the facing, and are to be kept about even with the top of its last finished course. The joints of the facing will be pointed as the work progresses, using the same kind of mortar with which the stone is set, or such as may be prescribed. Cement.-Must be freshly burned and ground, and equal in quality to the best Rosendale. It should be fine dry powder, must be free from inert matter, and must set strongly and firmly but not too quickly. Every barrel of cement shall be tested upon its arrival, and such as are rejected must be immediately removed from the work. Every barrel will be tested again just before it is taken out for use in the work, and whenever else it may be desirable to do so; and it shall not be used unless it passes these tests. If rejected, it must be removed immediately from the vicinity of the work. In order to reduce the danger of deterioration during the interval which elapses between the first and the last examination, contractors are advised to have the cement furnished them in water-tight casks, and to have a water-tight cement shed prepared for the protection of that which passes the first test. No fat or common lime, or cement which fails to pass the tests, is to be used in any part of the work. Sand.-Must be sharp, clean, rather fine, and free from earthy or vegetable matter; and must be screened and washed, if required by the engineer in charge or the inspector. Mortar.-Must consist of one part, by measure, of cement and two of sand, with only enough water to form a stiff paste with it. It must be mixed thoroughly by means of a mortar mill just before it is to be used, and in such quantity only as is immediately needed. None that remains over from the preceding day, or stands long enough to need reworking, is to be used in any part of the work. If it be ascertained that any such mortar has been used in the work, the part which it enters must be taken down again, and rebuilt with good mortar at the contractor's own expense. No work involving the use of mortar is to be done while the temperature is at or below thirty-two degrees (32°) Fahrenheit. Concrete.-Is to be composed of one part, by measure, of cement mortar and three parts of gravel or broken stone, small enough to pass through a ring two and a half (24) inches in diameter; the stone or gravel to be hard, strong, and free from dust, and to be wet or washed before mixing with the mortar, if required. The mixture to be made in the most thorough manner by hoe and shovel, or by concrete mill, so that every piece of stone or gravel shall be entirely coated with the mortar. In placing concrete, it shall be deposited in successive layers from six (6) to eight (8) inches thick, until the depth or thickness required is secured; each layer to be thoroughly rammed and settled in place before the next is laid upon it. REMOVAL OF OLD LOCKS. The old locks are to be taken down. Such of the material of which their walls are composed as is approved by the engineer in charge may be used in the construction of the new locks. The remainder will be deposited where required. Bidders must state the price per cubic yard for which this work will be done, and the prices per cubic yard which they will pay for so much of this material as they may be permitted to use as facing and backing in the construction of the walls of the new locks. The amount of masonry facing will be determined by measuring the area of the exposed vertical face, and allowing an average thickness of two (2) feet. All orders and instructions which may be given by the engineer in charge in relation to the prosecution of the work, details of construction, et cetera, are to be complied with by the contractor. APPROXIMATE QUANTITIES FOR ONE LOCK OF FIVE (5) FEET LIFT. Earth excavation.-Varied by addendum. Rock excavation.-Variable; not exceeding one thousand (1,000) cubic yards. Timber and plank.-Contingent; four hundred thousand (400,000) feet, board measure. Cut-stone masonry.-Fourteen hundred (1,400) cubic yards. Rubble masonry.-Twenty-five hundred (2,500) cubic yards. Concrete.-One thousand (1,000) cubic yards. Wrought iron.-Spikes, twenty thousand (20,000) pounds; bolts, forty thousand (40,000) pounds. Cast iron.-Dowells, thirty-five hundred (3,500) pounds. The government reserves the right to make such alterations in the plans and specifications as the interests of the work may from time to time seem to require; and it is to be distinctly understood that any reduction of quantities which may result from such alteration is not to be assumed by the contractor as the basis of a claim against the government for damages or the loss of prospective profits. Work must be begun under each contract within twenty (20) days after its execution, and must be completed by June 30th, 1877. No convict labor will be allowed on the work. Special attention is directed to the instructions to bidders to be found on the third page of the printed forms of proposals and guarantys. Bids not made in conformity with those instructions will not be considered. Every bid must be made upon the printed forms furnished by the government and must be accompanied by conclusive evidence of the responsibility of the person or persons making the bid. The bidder must also state whether he has ever been directly engaged in building canal locks or similar works of masonry, and whether he has ever been interested, directly or indirectly, in any contract with the Government of the United States; and if he has been so interested, he will give the date and character of the contract, and the name, title, and residence of the officer with whom it was formed, and will state where and how it was executed and who accepted it on the part of the government. Bidders are informed that it is necessary for them to examine the sites of the proposed locks before offering their bids. Florence, Alabama, is the town nearest the shoals. An engineer stationed at the work will furnish those who apply with such additional information concerning it as they may require. ADDENDUM. WALTER MCFARLAND, Major of Engineers. Locks 3 and 4, of five (5) feet lift each, are to be united, making one of ten (10) feet lift, to be called number 8. Locks 6 and 7, of five (5) feet lift each, are to be united, making one of ten (10) feet lift, to be called number 4. Bids will, therefore, be made for locks 2, 3, and 4 only. No member of Congress, officer or agent of the government, or any person employed in the public service shall be admitted to any share herein, or any benefit which may arise herefrom. In witness whereof the undersigned have hereunto placed their hands and seals the day and date first above written. (Executed in quintuplicate.) Witnesses: MAURICE KINGSLEY. J. T. SARGENT. WALTER MCFARLAND, [L. S.] I do solemnly swear that the copy of contract hereto annexed is an exact copy of a contract made by me personally with George Williams, of Keokuk, Lee County, Iowa; that I made the same fairly, without any benefit or advantage, corruptly, to the said George Williams, or any other person; and that the papers accompanying include all those relating to the said contract, as required by statute in such case made and provided. WALTER MCFARLAND, Subscribed and sworn to before me this 19th day of May, 1876. (Signed) Major of Engineers. DAN'L J. DUFFY, Commissioner of the U. S. Circt. Ct., East. Tenn. Bond in the sum of $70,000.00 for the faithful performance of a contract between Major Walter McFarland, Corps of Engineers of the United States, and George Williams, of Keokuk, Iowa. Know all men by these presents that we, George Williams, of Keokuk, in the county of Lee, in the State of Iowa, Albert L. Connable, of Keokuk, in the county of Lee, State of Iowa, and Joseph W. Bishop, of Keokuk, in the county of Lee, State of Iowa, are held firmly bound to the United States of America in the sum of seventy thousand dollars ($70,000.00) lawful money of the United States, for which payment, well and truly to be made, we bind ourselves and each of us, our and each of our heirs, executors, and administrators, for and in the whole, jointly and severally, firmly by these presents. Sealed with our seals, dated the 4th day of April, in the year of our Lord eighteen hundred and seventy-six (1876). The condition of this obligation is such that whereas certain articles of agreement, bearing date the 31st day of March, 1876, have been entered into by and between Major Walter McFarland, Corps of Engineers, U. S. Army, acting for and in behalf of the said United States, and the above bounden, George Williams, for the construction of canal-locks at Muscle Shoals, Alabama. Now if the above bounden, George Williams, -hall, for and during the period during which the said articles of agreement shall, by their original terms, as well as by reason of any extension of time which, as provided in said articles, may be granted for their performance, continue in force, duly and oberve, comply with, and perform all and singular the terms, conditions, covenants, and agreements which, on the part of the said George Williams, are in said articles of |