SECTION 1. The services of the present Director of the Census in the compilation and tabulation of the census returns and the preparation of the report of the census shall be continued in Washington upon the same terms as those upon which lie has served in the Philippine Islands; and the services of the two assistant directors of the census authorized by Act Numbered Four hundred and sixty-seven shall be continued in Washington until tho completion of the census report, at the rate of three hundred dollars. United States currency, per month each, such salaries to commence upon their reaching Washington, and their present salaries, as authorized by Act Numbered Four hundred and sixty-seven, to continue until that time: Provided, however, That they shall consume only the usual time in proceeding from Manila to Washington.