"Treatise on the construction of artesian honeycombs on the lands of Liège for the diversion and removal of water in the underground workings of coal mines" by L.-M.-H. de Crassier This book is an important source of knowledge about hydraulic works related to coal mining in the Liege region. The author examines in detail the methods of construction and operation of artesian honeycombs, necessary for removing water from mines and maintaining the safety of underground works. This book will be useful both to specialists in the field of mining and hydraulic engineering, and to anyone interested in the history of industrial development and the technical aspects of mining."