Seed testing fund. All moneys collected as fees or charges for seed testing work shall be deposited in a special fund to be known as the seed testing fund. The fund shall be maintained by the dean, who may expend such funds, in the manner usually employed by the experiment station in disbursement of receipts, for

(1) Salaries, wages and necessary expenses of employees while on official duty.

(2) The purchase of necessary equipment, materials and supplies.

(3) Other expenses necessary to the carrying out of seed testing work.