1306 CONGRESSIONAL PROCEEDINGS. 
in regard to said assessment and confirmation. The commission shall 
furnish the said clerk with a duplicate of its assessment book, and in 
both shall be entered any change made or ordered by the court as to 
any real estate. Such book filed with the clerk when completed and 
certified shall be prima facie evidence of all facts recited therein. In 
case assessments are not paid as aforesaid the book of assessments 
certified by the clerk of the court shall be delivered to the officer 
charged by law with the duty of collecting delinquent taxes in the Dis- 
trict of Columbia, who shall proceed to collect the same as delinquent 
real estate taxes are collected. No sale for any installment of assess- 
ment shall discharge the real estate from any subsequent installment; 
and proceedings for subsequent installments shall be as if no default 
had been made in prior ones. 
All money so collected may be paid by the Treasurer on the order 
of the commission to any persons entitled thereto as compensation for 
land or services. Such order on the Treasury shall be signed by a 
majority of the commission and shall specify fully the purpose for ~ 
which it is drawn. If the proceeds of assessment exceed the cost of 
the park the excess shall be used in its improvement, under the direc- 
tion of the officers named in section 8, if such excess shall not exceed 
the amount of $10,000. If it shall exceed that amount that part above 
$10,000 shall be refunded ratably. Public officers performing any 
duty hereunder shall be allowed such fees and compensation as they 
would be entitled to in like cases of collecting taxes. The civilian 
members of the commission shall be allowed $10 per day each for each 
day of actual service. Deeds made to purchasers at sales for delin- 
quent assessments hereunder shall be prima facie evidence of the right 
of the purchaser, and anyone claiming under him, that the real estate 
was subject to assessment and directly benefited, and that the assess- 
ment was regularly made; that the assessment was not paid; that due 
advertisement had been made; that the grantee in the deed was the 
purchaser or assignee of the purchaser, and that the sale was con- 
ducted legally. 
Any judgment for the sale of any real estate for unpaid assess- 
ments shall be conclusive evidence of its regularity and validity in all 
collateral proceedings except when the assessment was actually paid, 
and the judgment shall estop all persons from raising any objection 
‘thereto, or to any sale or deed based thereon, which existed at the date 
of its rendition, and could have been presented as a defense-to the 
application for such judgment. 
To pay the expenses of inquiry, survey, assessment, cost of lands 
taken, and all other necessary expenses incidental thereto, the sum of 
$1,200,000, or so much thereof as may be necessary, is hereby appro- 
priated out of any money in the Treasury not otherwise appropriated: 
Provided, That one-half of said sum of $1,200,000, or so much thereof 
