This is the first and only book to describe the refractive index and its dispersions from the UV to the IR region for Water, sea water and 3 methyl pentane. The thermo-optic and pressure-optic coefficients of water are also described in physically meaningful models. This book is useful for scientists and engineers to make any optical device by using water. There are 150 pp and it costs only $30 directly from the publisher (Email address: sujata_brisbane@yahoo.com.au)