MISSING FIGURES OR PAGES IN TREFETHEN ONLINE TEXT The unpublished 1996 textbook by Trefethen, "Finite Difference and Spectral Methods for Ordinary and Partial Differential Equations", has been made available online at http://web.comlab.ox.ac.uk/oucl/work/nick.trefethen/pdetext.html. A small fraction of the material is missing from the online files because it was not available in electronic form. The missing items break down as follows. 1. MISSING FIGURES BY TREFETHEN Figs. alpha.1 (p 3), 1.5.4 (p 49), 4.3.2 (p 164), 4.4.1-2 (p 167-8), 6.2.1 (p 223), 8.1.1-2 (p 263), 8.1.4 (p 266), 8.1.5 (p 268). These could be scanned in, and that would be the end of it. If you do this, please send me copies of your files! Meanwhile, feel free to make photocopies at will. 2. MISSING MARGINAL GRAPHICS BY TREFETHEN Tables 3.2.1-2 (p 121-2), 5.1.1 (p 199). These too could be scanned in or photocopied. 3. MISSING FIGURES PUBLISHED BY OTHER AUTHORS AND UNDER COPYRIGHT Tables 3.3.1-3 (pp 130-2, from Fornberg) Fig 6.4.4 (p 230, from Engquist & Majda) Figs 7.1.1-2 (pp 236-7, from Fornberg) 4. MISSING TEXT PUBLISHED BY TREFETHEN AND UNDER COPYRIGHT pp 207-208 "Dispersion, dissipation and stability". Appeared in D. F. Griffiths and G. A. Watson, eds., Numerical Analysis, Longman, 1986. pp 278-297 "Lax-stability vs. eigenvalue stability of spectral methods". Appeared in K. W. Morton and M. J. Baines, eds., Numerical Methods for Fluid Dynamics III, Clarendon Press, 1988. All the material in Chapters 7 and 8 is done better in Trefethen's 2000 SIAM text, "Spectral Methods in MATLAB".