also as to the amount, if any, to which he may be entitled. 

Restrictions Upon Making of Public Contracts 

## ARTICLE V 

SECTION 636 . Appropriation Antecedent to Making of Contract.  — No contract involving the expenditure of public funds shall be made until there is an appropriation therefor, the unexpended balance of which, free of other obligations, is sufficient to cover the proposed expenditure. This provision shall not, however, be construed to prevent the purchasing and carrying of supplies in stock, under the regulations of the Bureau of Audits, provided that when issued such supplies shall be charged to the proper app ropriation account. 

[83-14; 584-5; 1396-17 ( c ); Comp., 1295.] 

SECTION 637 . Certificate Showing Appropriation to Meet Contract.  — Except in the case of a contract for personal service or for supplies to be carried in stock, no contract involving an expenditure by the Insular Government of three thousand pesos or more shall be entered into or authorized until the Insular Auditor shall have certified to the officer entering into such obligation that funds have been duly appropriated for such purpose and that the amount necessary to cover the proposed contract is availabl e for expenditure on account thereof. When application is made to the Insular Auditor for the certificate herein required, a copy of the proposed contract or agreement shall be submitted to him accompanied by a statement in writing from the officer making the application showing all obligations not yet presented for audit which have been incurred against the appropriation to which the contract in question would be chargeable; and such certificate, when signed by the Auditor, shall be attached to and become a part of the proposed contract, and the sum so certified shall not thereafter be available for expenditure for any other purpose until the Government is discharged from the contract in question. CAaDTH 

Except in the case of a contract for supplies to be carried in stock, no contract involving the expenditure by any province, municipality, township, or settlement of two thousand pesos or more shall be entered into or authorized until the treasurer of the political division concerned shall have certified to the officer entering into such contract that funds have been duly appropriated for such purpose and that the amount necessary to cover the proposed contract is available for expenditure on account thereof . Such certificate, when signed by the said treasurer, shall be attached to and become a part of the proposed contract and the sum so certified shall not thereafter be available for expenditure for any other purpose until the contract in question is lawfu lly abrogated or discharged. 

