Upon the disincorporation of any district in the manner hereinbefore provided for, the board of supervisors shall forthwith, after ascertaining by said canvass that the disincorporation has been carried, determine the amount of the indebtedness of said district, the amount of money in the treasury thereof and all indebtedness due or coming due the said district, and the directors of said district shall furnish the said board of supervisors with a statement showing said amount of indebtedness, the said amount of money in the treasury and all indebtedness due or coming due said district, and said district shall before the expiration of 30 days turn over to the treasurer of said county all moneys of said district in his possession, and said county treasurer shall place said money in a special fund to be drawn upon as hereinafter provided for.