ADA CO-OPERATIVE FOOD FARMERS UNION LTD. v. ABODEI AND OTHERS Agency—Sale of goods by agent—Passing of title—When effective—Loan granted to plaintiff union to buy machinery—Machinery registered in joint names of bank and plaintiff union—Machinery later sold to third party by A, officer of co-operative department, guarantors of loan—No evidence on appointment of A as agent of plaintiff union—Whether title to machinery effectively passing to third party—Whether guarantors having right to seize machinery to sell when debt still unpaid.