Without reagents there would be no flotation, and without flotation the mining industry, as we know it today, would not exist. Reagents in mineral processing are therefore an inseparable part of the flotation process. Many books, articles and patents exist on development of reagents, reagent chemistry and reagent application.

In the past several decades considerable emphasis was placed on investigation of flotation properties of industrial minerals. The interest in process development for beneficiation of various industrial minerals also comes from the growing need to recover economic minerals from lower grade ores. In general terms these ores in which the minerals exist as ores are associated with, complex, silicates do not respond to the concentration methods used to treat higher-grade less complex mineral silicate ores.

Geotechnical and geological engineering has wide applications in military, mining, petroleum, natural geohazard and other engineering disciplines that are concerned with stability of the ground and construction occurring on the surface or within the ground. It uses principles of soil mechanics and rock mechanics to investigate subsurface conditions in order to evaluate stability of natural slopes and man-made deposits, assess risks posed by site conditions, design earthworks and structure foundations, and monitor site conditions, earthwork and foundation construction. Determination of the relevant physical, chemical and mechanical properties of ground materials is the key to successfully deliver such projects. Therefore, a book containing both theory of geomaterial testing and up-to-date testing methods is much in demand to college students, academic researchers and practicing technicians and engineers for obtaining reliable and accurate test results. This book is intended primarily to serve this need and aims at the clear explanation, in adequate depth, of the fundamental principles of soil and rock tests <...>

The science of meteoritics comprises the study of meteors, meteorites and extraterrestrial dust. The study of meteors is mainly concerned with the recording and interpretation of high altitude objects that never fully penetrate our atmosphere, while the study of dust is a highly specialized branch that requires sophisticated sampling techniques for the collection and identification of the minute and controversial dust particles. The present work, on the other hand , deals mainly with the massive, tangible material. We will study the meteorite falls and finds and we will limit ourselves largely to the examination of such objects generally known as iron meteorites.