Calculated results of the lysozyme crystal growth in the salt condition in the homogeneous (solid line) and diffusive (dotted line) model in the transient state. (a) Time course of the crystal growth. (b) Time course of the protein concentration on the crystal surface. (c) Supersaturation level around the growing crystal. R(t), R: radius of the crystal (mm); C(t): concentration of the protein on the surface of the crystal (mg ml−1); σ(R): supersaturation level; t: time after the crystal starts growing.