This is my - well, second favorite book as far as human potential goes - after "Life and Teaching of the Masters of the Far East" by Baird T. Spalding. This book, though, brings people who have developed some extraordinary abilities into the present tense.
As another reviewer noted, the author does repeat quite often "China is so great" tune, but it is also true that a lot of countries in the East have greater awareness and appreciation for working with energy, and have been cultivating it to a greater extent than people in the West. In the West, these awareness begin to spread more in the recent years. It was often put down by those who are immersed in studying the world as if nothing other than material world existed. From this book, though, it is obvious that even in China, there are many people who, due to lack of understanding that mind influences the energy which then expresses in physical dimension, they also had conflicts with accepting the reality of what they witnessed.
The author has correctly pointed out that when you use whatever mind-power you are able to express and when you take care to develop it - it grows - when you don't use it - it diminishes. This is true regardless of what skills any person may be using. It is also a way of economy in nature.
While there are few quotations in this book from the Yellow Emperor's Classic of Internal Medicine - as in "Be imperturbable and the true chi will come to you", this idea is not unique either to China or to Buddhism, it is a spiritual truth presented throughout all spiritual traditions. India's "Yoga Sutras of Patanjali" is yet another book that deals with development of different abilities, yet the idea is that one should not focus on development of special abilities (siddhis), but rather just focus on realizing Oneness (Self-Realization). This state of Oneness is in Christian Bible called entering the "Kingdom of God" - the method described as loving this Infinite Loving Power and Intelligence with all one's mind, heart, soul and strength. The goal of alchemy - either Eastern (Taoist) or Western is again realizing this state of Oneness and from this state, the powers begin to emerge spontaneously when needed. These powers are also intended to be used in service, out of love, not for selfish goals.
The highest visible vibration of this One Power - the Source of All Energy - is Light - so appropriately the method used to unleash these powers to which every human being does have access are meditations on the Light. With a quite a bit of children, mentioned in this book, who were helped in this process of unfolding inner power - it took only one such session to produce remarkable results.
The book mentions how there are many more women (girls) who have these "special powers" than men (boys). This is not all that surprising because it is generally considered that women's "heart centers" are more open than men's and Love is the highest feeling vibration, Love is the essential quality of this Infinite Energy.
The author then mentions how they have noticed that with most children these "special" powers begin to diminish after puberty. This may also not be surprising because a certain leakage of energy occurs due to loss of blood (menstruation) in women and loss of semen (in men) and I might add that for this reason, there are special practices in Taoist Alchemy to prevent these leakage and to preserve the energy. After all - all of these special abilities are based on "playing with energy" - opening the channels within to let it flow, generating it and directing it. Focusing upon - meditating upon the Source of All of this Energy is one way to connect with it and let it express - different forms of qigong energy cultivation and manipulation exercises are another.