The effect of the unstable oscillations in Fig. 6 on bone mass. System of equations (7): The bone mass decreases with oscillations to 0.0. The tumor converges to maximum capacity L
as in Fig. 5. The parameters are as in Fig. 4, except that r11 = .02. The bone mass parameters are k1 = .0748, k2 = 0006395 as in Fig. 3.