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

"Encyclopaedia Britannica, 11th Edition, 'Magnetite' to 'Malt'" by Various is an early 20th-century reference compilation offering insights into science and general knowledge. It goes over topics like geology and chemistry. The work includes specific studies of minerals like magnetite, which is valuable because of its magnetic properties and use as iron ore. It explains where magnetite can be found and how it's used in industry. Also included in this volume are scientific instruments like magnetographs and magnetometers, explaining their purpose and how they work to measure magnetic fields. The goal of the text is to give detailed and useful knowledge for scholars and practitioners.