Section 63
SEC. 63. The board of assessors shall meet, after ten days notice posted at the main entrance of the municipal building and in a public and conspicuous place in each barrio, for three days in the month of December in each year, to add to the list of real property of the municipality the value of the improvements placed upon such property during the year preceding, and to reduce the assessment against any taxpayer whose improvements, already assessed, have been destroyed during the preceding year, and for the addition to the list of any property which is taxable and which has theretofore escaped taxation.