One wheel of a pre-1916 automobile manufactured by the Buick Motor Company was made of defective wood. Buick could have discovered the defect had it made a reasonable inspection after it purchased the wheel from another manufacturer. Buick sold the car to a retail dealer, who then sold it to MacPherson. While MacPherson was driving his new Buick, the defective wheel collapsed and he was thrown from the vehicle. Was Buick, which did not deal directly with MacPherson, liable for his injuries?