1. For recent comprehensive reviews of the technique of Fourier Transform Spectroscopy for the Far-infrared, see: G. A. Vanasse and H. Sakai, Progress in Optics, 6, 261, (North Holland Publishing Co., 1967).
2. P. L. Richards, Fourier Transform Spectroscopy, Ref. 1, Chapt. 2.
3. L. Mertz, Transformations in Optics, (John Wiley & Sons, 1967).
4. Dr. Gebbie’s lectures on Far Infrared Spectroscopy Using Interferome ter s”.
5. F. K. Kneubuhl, J. F. Moser, and H. Steffen, J. Opt. Soc. Am., 56, 760, (1966).