ded to the Secretary of the Interior, recommending
approval.

(Signed) J. W. Powell, _Director_.

Department of the Interior,
_June 20, 1891_.

The within contract is hereby approved.

(Signed) Geo. C. Chandler,
_Acting Secretary_.

June 30, 1891. Transmitted by J. W. Powell, Director, to the Secretary
of the Interior for file in returns office.

July 1, 1891. Returned for oath.

July 20, 1891. J. W. Powell, Director, transmits amended contract, with
bids, proposals, and all original papers attached.

VII. REPORT OF MR H. C. RIZER

Smithsonian Institution,
Bureau of Ethnology,
Washington, _November 24, 1891_.

Honorable J. W. Powell,
_Director of the Bureau of Ethnology_.

Sir: Complying with your order directing me to proceed to Florence,
Arizona, to witness the closing up of the work under contract for
the preservation of Casa Grande ruin near that place, and to report
to you the amount and character of the work accomplished, certifying
the amount due the contractors under each item, I have the honor to
submit the following report:

I visited the ruin first on October 20, and found the work well
advanced. Steady progress was made from said date until October 31,
the limitation expressed in the contract for prosecuting it.

In order to ascertain the exact location of Casa Grande ruin and to
aid me in the determination of the amount of work performed by the
contractors, I employed Mr Albert T. Colton, a civil engineer and
the official surveyor of Pinal county, Arizona, within the limits of
which the ruin stands. From actual measurements made by Mr Colton,
based upon official notes in his custody, he informed me the ruin
was located in the northeast corner of the northwest quarter of the
southwest quarter of section 16 of township 5 south, range 8 east. A
congressional township plat on which Mr Colton has marked the exact
location of the ruin is filed herewith, marked Exhibit A, and made a
part of this report [plate CXXV].

On October 29 Mr Colton at my instance took measurements of the
brickwork in underpinning and filling in cavities in the walls and
of the excavation done by the contractors. His estimate, based upon
these measurements, was submitted to me in writing. It is filed
herewith, marked Exhibit B, and is made a part of this report.

I find from these m