PART I I METHODOLOGY Introduction In Part 11, Methodology is interpreted as relating to all aspects of the application to chemical analysis of the techniques and instrumentation of atomic absorption, emission and fluorescence spectroscopy. The subject matter is treated under two principal headings: 1. General Techniques, where the preparation of the sample (section 1.1) and the treatment and significance of experimental data (section 1.2), as factors affecting the overall convenience, speed, accuracy, precision and sensitivity of analysis, are considered. 2. Applications, a survey of specific methods reported in various fields of materials analysis; each of these sections (2.1 to 2.8) contains a summary of the analytical data in tabular form. In sub-dividing these principal headings, as shown in the List of Contents, it proved difficult to achieve a rigid classification. In general, if a publication is relevant t o more than one section, the view has been taken that it is better to err in the direction of duplication of comment. Section 2.8 contains some entries which could not be readily placed elsewhere. 45