This book chronicles the proceedings of the International Symposium on Apparent and Microscopic Contact Angles, held in conjunction with the American Chemical Society meeting in Boston, August 24--27, 1998. A. Fery, T. Pompe and S. Herminghaus A.V. Neimark Acid-base surface free energy of solids and the definition of scales in the van Oss-Good theory AFM measurements of hydrophobic forces between a polyethylene sphere and silanated silica plates - the significance of surface roughness An acoustic technique for the monitoring of dynamic wetting behaviour Analysis of evaporating droplets by using ellipsoidal cap geometry C. Della Volpe and S. Siboni C. Della Volpe, A. Penati, R. Peruzzi, S. Siboni, L. Toniolo and C. Colombo Contact angles on quartz induced by adsorption of heteropolar hydrocarbons Determination of acid-ase properties of metal oxide films and of polymers by contact angle measurements Determination of contact angles on swelling polymer particles by the column wicking method Determination of peripheral contact angle of sessile drops on solids from the rate of evaporation E. Chibowski, L. Holys and M. Lubomska E. McCafferty and J.P. Wightman E.A. Angu, R.C. Cameron, S.K. Pollack and W.E. Collins Effect of external radiofrequency electric field on the surface free energy components of calcium carbonate in the presence of cationic and anionic surfactants Estimation of contact angles on fibers Evolution of surface chemistry and physical properties during thin film polymerization of thermotropic liquid crystalline polymers F. Chen, J.A. Finch, Z. Xu and J. Czarnecki Factors influencing contact angle measurements on wood particles by column wicking G. McHale, S.M. Rowan, M.I. Newton and N.A. Kb G. McHale, M.I. Newton, M.K. Banerjee and S.M. Rowan H. Haidara, L. Vonna and J. Schultz H.Y. Erbil H.Y. Erbil, G. McHale, S.M. Rowan and M.I. Newton Instability of the three-phase contact region and its effect on contact angle relaxation J. Drelich J. Nalaskowski, S. Veeramasuneni, J. Hupka and J.D. Miller J. Singh and A. Sharma K.-X. Ma, T.-S. Chung, P.K. Pallathadka and S.-S. Feng L.C. Salay and A.M. Carmona-Ribeiro L.-H. Lee M. Chamerois, M. Franois, F. Villiras and J. Yvon M. Wlinder and D.J. Gardner Measurement of contact line tension by analysis of the three-phase boundary with nanometer resolution Microsphere tensiometry to measure advancing and receding contact angles on individual particles Modification of calcium carbonate surface properties: macroscopic and microscopic investigations Molecular mechanisms of hydrophobic transitions Nanometer resolution of liquid surface topography by scanning force microscopy O.N. Tretinnikov PART 2: SURFACE FORCES AND SURFACE FREE ENERGY PART 3: WETTING OF HETEROGENEOUS, ROUGH AND CURVED SURFACES PART 4: DYNAMIC EFFECTS IN CONTACT ANGLE MEASUREMENT S. Ecke, M. Preuss and H.-J. Butt S.P. FriedmanS.Q. Shi and D.J. Gardner Self organization in thin liquid films: dynamics and patterns in systems displaying a secondary minimum Surfactant induced wetting singularities in confined solid-liquid-liquid systems: kinetic and dynamic aspects T. Pompe, A. Fery and S. Herminghaus The gap between the measured and calculated liquid-liquid interfacial tensions derived from contact angles The combined effect of roughness and heterogeneity on contact angles: the case of polymer coating for stone protection Thermodynamic equilibrium and stability of liquid films and droplets on fibers Underwater captive bubble technique on curved surfaces of blended polydimethylsiloxanes V.V. Yaminsky Wetting of SiO2 surfaces by phospholipid dispersions Wettability and microstructure of polymer surfaces: Sterochemical and conformational aspects Wettability of fine solids extracted from bitumen froth X. Xie and N.R. Morrow.