Intoduction C. T. C. Wall; 1. Singularities of smooth mappings (Volume 23, 1968); 2. On matrices depending on parameters (Volume 26, 1971); 3. Remarks on the stationary phase method and Coxeter numbers (Volume 28, 1973); 4. Normal forms of functions in neighbourhoods of degenerate critical points (Volume 29, 1974); 5. Critical points of smooth functions and their normal forms (Volume 30, 1975); 6. Critical points of functions on a manifold with boundary, the simple Lie groups Bk, Ck and F4 and singularities of evolutes (Volume 33, 1978); 7. Indices of singular points of 1-forms on a manifold with boundary, convolution of invariants of reflection groups and singular projections of smooth surfaces (Volume 34, 1979).
