This work accurately follows the behavior of the ferromagnetic transition of Gd when alloyed with Y, and seeks to link structural and magnetic properties. We have measured the lattice parameters, heat capacities and resistivities of recrystallized single-phase solid solutions GdxY1-x. The trend of the Curie temperature T-c has been found to have a linear dependence on the molar fraction of the diluting element. The thermodynamic and structural implications of the appearance of a magnetic transition in a solid solution are discussed.