Section 1908 - Apportionment of expenses1. The board of education of such central high school district shall cause to be apportioned among the school districts included in such central high school district the amount required for the payment of the principal and interest of all obligations issued for the purchase or acquisition of a school site, the erection thereon of a new school building and the construction of improvements and other structures on such site, and for the payment of the authorized expenditures for the maintenance, support and expenses of such high school during the ensuing school year. There shall be apportioned to each such district such portion of such amount as the assessed valuation of the taxable property in such district bears to the total assessed valuation of all the school districts included in such central high school district, as appears from the last preceding assessment roll. The board of education of such central high school district shall on or before July first of each year present to the board of education of each union free school district and to the trustee or board of trustees of each common school district in such central high school district a certified statement of the portion of such amount to be paid by each of such districts, except that in a central high school district where the board of education has by resolution pursuant to section nineteen hundred six determined that the annual meeting of such central high school district shall be held on the last Tuesday in April, and where the annual meeting has been so held, the board of education of such central high school district must present the above mentioned certified statement in the manner above set out on or before May tenth of each year, and the said boards of education, boards of trustees or trustees shall cause the same to be raised by tax on the taxable property in such districts in the same manner as other taxes for the support and maintenance of the schools therein.2. The board of education of a central high school district in the county of Westchester shall present such certified statements to the board of education of each union free school district and to the trustees or board of trustees of each common school district in such central high school district on or before the third Tuesday in June each year, and such boards of education, boards of trustees or trustees shall include such amount in the annual school taxes of such districts and certify the same to the supervisor of the town before July first each year as provided in the laws applicable to such county.3. The board of education or the trustees of each school district within and forming a part of such central high school district situate within the county of Nassau, within ten days after receipt of any payment of moneys raised by taxation as determined by the school district assessment roll, shall pay or cause to be paid over to the treasurer of such central high school district a sum of money not less than an amount which bears the same ratio to such payment received by the said board of education or trustees as such school district's share of the central high school budget bears to the total budget of such school district.