Jacobs J.A. The Earth’s Core

2nd Ed. International Geophysics Series, 1987, Volume 37. Academic Press, New York, London, 1987. – 426 pp.
The innermost regions of the Earth are inaccessible to man and no direct measurements of any of its physical properties can be made. Much attention has been given in the last few years to the "inverse " problem in geophysics— that of determining some physical parameter from a set of observations made at the surface of the Earth. Our knowledge of the core of the Earth comes from many different fields, of which seismology and geomagnetism are the most important and a discussion of these disciplines form a large part of this book.
It is just over ten years since the first edition of The Earth's Core was published It has been said that the typical doubling period for the accumulation of scientific knowledge during the last two centuries is about fifteen years, and this is certainly the case for the Earth's core. The second edition has been largely rewritten and expanded, but follows the same layout as the first edition.General Physical Properties of the Earth
The Origin of the Core
The Thermal Regime of the Earth's Core
The Earth's Magnetic Field
The Constitution of the Core
The Cores of Other Planets
Appendix.