Encyclopaedia Britannica, 11th Edition,"Magnetite" to "Malt", volume 17, Slice 4

A scientific publication written during the early 20th century. This volume is part of a larger encyclopedic work that encompasses a range of topics in arts, sciences, literature, and general information, covering subjects from geology to chemistry. The book contains detailed entries on minerals, instruments used in geology and magnetism, and specific chemical phenomena, aiming to provide comprehensive insights in these fields. The opening portion of this volume provides a series of articles, starting with ''Magnetite,'' a mineral important for its magnetic properties and as an iron ore. The text describes its physical characteristics, occurrence in various geological formations, and significance in industrial applications. Following this entry, there are additional sections on instruments such as magnetographs and magnetometers, which explore the methodologies employed for measuring magnetic fields and recording magnetic elements on ships. This scientific discourse indicates the volume's aim to deliver in-depth and practical knowledge, making it a valuable resource for scholars and practitioners in the relevant fields.