When a liquid in a glass vessel, is heated its apparent expansion is $10.30 \times 10^{-4}/^{\circ}C$ same liquid when heated in a metal its apparent expansion $10.06 \times 10^{-4}/^{\circ}C$. The coefficient of linear expansion of the metal is : (coefficient of linear expansion of glass = $9 \times 10^{-6}/^{\circ}C$) :