C00021845

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Attention:

Suhject carrnet ". Contract 'o.

ivadnant "n. 3

Centlecen:

Subiact to rour ncceptance in the arace provtded helo. aad pursuent to the toreg of Section T. irticle l, Paragrarh (h) of nubjiect ccntracts, the fcllo:ing final overiead allocation Tates for l97l are inccreorated herecin:

om-Site Cyerieed Pate Bace 1 Arect lator inclndinf leave bonefits

Approval of the feregoing rates is cubject to tho provislens of the contracts which: liait. to the asount of a etated estineted cost, tha oilisation of the Covertent to reishurse the contraetor for costs incurred.

Please indicate vour scceptance of the foregriae by sianias this letter and enclosed thrce conies hereof. Tetaip oas cons for Four files and retura tie sipred oriçinal and to conles to the Gffi -In-Cherse at tha earlient praeticsle date.

very truly yours,

ITLE

CCTIe TTICE

Approved fcr Date27 F: 979.

C000218451

f

1.

SEGISTERSD

25 Cetoer 1272

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Attention: Dr-

Subject : Contrast Ko.

Amadrent No.2

Gentlemen:

Reference is made to the suhject Contract which was entered into as of 1 Noverher 1971

By authority of this amendnent the Sponsor wishes to extend the period of perfornance to 30 Ayri1 1972, effectiva 1 Seytoeber 1971.

It is understood and agreed by the parties hereto that the above time exteasion shall in no vay effect the estimated cost of the subject Contract.

All other terms and conditions shall remain as previously stipulated.

Please indicate your acceptance of the forcgoing ty signing this letter and enclosed two copies hereof. Retain one copy for your files and return the signed original and one copy to the undersigned at the earliest practicable date..

Very truly yours,

Contracting Officer

EXECUTED:

3 Duly áuthorized Fapresentativa

TITLE

Approvel3 Date

20 Septester 1971

C00021845O

REGISTERED

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REGISTERED

Actontion:

Subject : Centract No. Acendment o.1

Centlcmen:

Reference is nade to the subjact contract catered into as of 1 "ovonber 1370.

The Snonsor dasires to net forth an aávaace umderstandins regardins subsistence expenses fcr eeployecs of the contractor vhile in trsvel status.

It is therefora mutvally undorstcod and arrond by the partics bereto that subsistence expencos of casloyees of the contracror vhilo in travel ctatus shall be es follova:

a. The nllowahle rate for autonohile travel shall be S.l2 per mile.

b. Subsistonce expenses siall be \$25.00 per dien per 24.hour day.

All other teres and conditions shall ronain as previously stipulated.

Pleese indieata your accoptancs of tha forecoins hy sisning t'iia lsrter snd tuo copisa heroof. Jotain one cooy for vour files and roturn the sirned orisinal. end one copy to tre uadersisned at che carlisct practicahle date.

Vary truly vours,

TITLE

Cortractins Offiedr

0

0

C00021845

12 Janucry 1271