From the act of blushing and the amount of manganese in our tears (tears of pain contain more than tears of distress) to the curiousness of a kiss, ''The Kingdom of Infinite Space'' explores the astonishing range of activities that go on inside our heads, most of which are entirely beyond our control. After escorting his readers on a fantastic voyage through every chamber of the head and brain, Raymond Tallis demonstrates that not only does consciousness not reside between our ears, but that our heads are infinitely cleverer than we are.