All sums of money received by the registrar as provided for in RCW 65.12.660, shall be forthwith paid by the registrar to the county treasurer of the county in which the land lies, for the purpose of an assurance fund, under the terms of this chapter; it shall be the duty of the county treasurer, whenever the amount on hand in said assurance fund is sufficient, to invest the same, principal and income, and report annually to the superior court of the same county the condition and income thereof; and no investment of the funds, or any part thereof, shall be made without the approval of said court, by order entered of record. Said fund shall be invested only in bonds or securities of the United States, or of one of the states of the United States, or of the counties or other municipalities of this state.
[ 1907 c 250 § 83; RRS § 10712.]