(A) Kinetic curves of the log number of crystals (nucleation rate) formed in various mixtures of Hbs as depicted in the figure. They include 100% HbC; 55% HbA + 45% α^G-Phila.₂β^C₂; 55% HbS + 45% α^G-Phila.₂β^C₂; and 100% α^{G Phila.}₂β^C₂. (B) Kinetic curves of the log number of crystals (nucleation rate) formed in a mixture of 20% α^G-Phila.₂β^C₂ + 80% α₂β₂ (HbA). The other solution is 100% α₂β^C₂ (HbC).