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Rh

The international committee shall cause the necessary instruments to be constructed, such as comparators for the standards of line and end measures, apparatus for the determination of absolute dilatations, balances for weighing in air and in vacuo, comparators for geodetic measuring-bars, &c.

The entire expense incurred in the purchase or construction of the building, and in the purchase and placing of the instruments and apparatus, shall not exceed 400,000 francs.

The estimate of annual expenditures is as follows:

A For the first period—during the construction and comparison of the new prototypes—

The annual budget of the bureau may be modified by the international committee as necessity may require at the suggestion of the director, but it shall in no case exceed the sum of 100,000 francs.

The contracting governments shall be notified of any modifications that the committee may think proper to make within these limits, in the annual budget fixed by the present regulations.

The committee may authorize the director, at his request, to make transfers from one subdivision of the allotted budget to another.

B For the period subsequent to the distribution of the prototypes: