The broad range of themes reflects the wide spectrum of activities within Engineering Geology as well as its concern with the most actual matters which affect mankind, like natural hazards and environmental protection. The methods & techniques of ground study, the construction materials, the surface & the underground works as well as the information technologies & the teaching, training & professional practice of engineering geology are also extensively covered by the authors of the papers. The state of development in engineering geology in 1994 demonstrating the current interest of the engineering geological international community & the ability of engineering geologists to help in the solution of some of the most important problems which affect the humanity. 641 papers.