49 A !) »,, / 33 P : 1-1g Ξ ω: : !? Ο H’ = oi“ : Ξ l = ᾿ : Ξ £ ᾽ Ξ ;! ! Ι’ B c Tm: ; BD shows the Control of the Mind, improving slowly at first, afterwards more quickly. It starts from at or near zero, and should reach absolute control at D. EF shows the Power of Observation of the contents of the mind, improving quickly at first, afterwards more slowly, up to perfection at F. It starts well above zero in the case of most educated men. The height of the perpendiculars HI indicates the dissatisfaction of the student with his power of control. Increasing at first, it ultimately diminishes to zero.