Author: Twyman, F. & Smith, D. M.

Description: This book is an excellent compilation of sensitive lines and wavelengths, wave numbers and frequencies of many of the elements. When working with vibrations or designing any of the Keely devices or experiments these numbers are absolutely essential and nearly impossible to find elsewhere. According to Keely spectra numbers are more important to work with than atomic weights. A rare reprint of the original 1931 text. 8.5" X 11"

Item#: B0011195