![Illustration of a declinometer from De Magnete by William Gilbert, published in 1600. Magnetic declination is the horizontal angle between the true geographic North Pole and the magnetic north pole, as figured Illustration of a declinometer from De Magnete by William Gilbert, published in 1600. Magnetic declination is the horizontal angle between the true geographic North Pole and the magnetic north pole, as figured](https://c8.alamy.com/comp/G169DY/illustration-of-a-declinometer-from-de-magnete-by-william-gilbert-G169DY.jpg)
Illustration of a declinometer from De Magnete by William Gilbert, published in 1600. Magnetic declination is the horizontal angle between the true geographic North Pole and the magnetic north pole, as figured
![Illustration from De Magnete, etc. by William Gilbert (1600, translated 1900), showing an instrument for measuring declination; 1600; On the Magnet, etc., available freely at Project Gutenberg; William Gilbert (1544–1603) Alternative names Illustration from De Magnete, etc. by William Gilbert (1600, translated 1900), showing an instrument for measuring declination; 1600; On the Magnet, etc., available freely at Project Gutenberg; William Gilbert (1544–1603) Alternative names](https://c8.alamy.com/comp/TX4B2X/illustration-from-de-magnete-etc-by-william-gilbert-1600-translated-1900-showing-an-instrument-for-measuring-declination-1600-on-the-magnet-etc-available-freely-at-project-gutenberg-william-gilbert-15441603-alternative-names-william-gilberd-description-english-philosopher-physician-engineer-physicist-and-astronomerphysician-to-elizabeth-i-and-james-i-and-scientific-researcher-into-magnetism-and-electricity-date-of-birthdeath-24-may-1544-10-december-1603-location-of-birthdeath-colchester-london-work-location-england-authority-control-q192706-viaf1072-TX4B2X.jpg)
Illustration from De Magnete, etc. by William Gilbert (1600, translated 1900), showing an instrument for measuring declination; 1600; On the Magnet, etc., available freely at Project Gutenberg; William Gilbert (1544–1603) Alternative names
![Gilbert: De Magnete, 1600. /Ntitle-Page Of The First Edition Of William Gilbert'S 'De Magnete,' London, 1600. The First Great Scientific Work Published In England. Poster Print by Granger Collection - Item # VARGRC0056960 - Posterazzi Gilbert: De Magnete, 1600. /Ntitle-Page Of The First Edition Of William Gilbert'S 'De Magnete,' London, 1600. The First Great Scientific Work Published In England. Poster Print by Granger Collection - Item # VARGRC0056960 - Posterazzi](https://cdn11.bigcommerce.com/s-yzgoj/images/stencil/1280x1280/products/1640267/4935937/apis4hv3q__06608.1626707967.jpg?c=2)
Gilbert: De Magnete, 1600. /Ntitle-Page Of The First Edition Of William Gilbert'S 'De Magnete,' London, 1600. The First Great Scientific Work Published In England. Poster Print by Granger Collection - Item # VARGRC0056960 - Posterazzi
![Illustration from De Magnete, etc. by William Gilbert (1600, translated 1900), showing an instrument to indicate the degrees of declination from the horizon for any latitude; 1600; On the Magnet, etc., available Illustration from De Magnete, etc. by William Gilbert (1600, translated 1900), showing an instrument to indicate the degrees of declination from the horizon for any latitude; 1600; On the Magnet, etc., available](https://c8.alamy.com/comp/TX4B2B/illustration-from-de-magnete-etc-by-william-gilbert-1600-translated-1900-showing-an-instrument-to-indicate-the-degrees-of-declination-from-the-horizon-for-any-latitude-1600-on-the-magnet-etc-available-freely-at-project-gutenberg-william-gilbert-15441603-alternative-names-william-gilberd-description-english-philosopher-physician-engineer-physicist-and-astronomerphysician-to-elizabeth-i-and-james-i-and-scientific-researcher-into-magnetism-and-electricity-date-of-birthdeath-24-may-1544-10-december-1603-ation-of-birthdeath-colchester-london-work-ation-e-TX4B2B.jpg)
Illustration from De Magnete, etc. by William Gilbert (1600, translated 1900), showing an instrument to indicate the degrees of declination from the horizon for any latitude; 1600; On the Magnet, etc., available
![GILBERT, William (1544-1603). De magnete, magneticisque corporibus, et de magno magnete tellure; Physiologia nova, plurimis & argumentis, & experimentis demonstrata. London: Peter Short, 1600. GILBERT, William (1544-1603). De magnete, magneticisque corporibus, et de magno magnete tellure; Physiologia nova, plurimis & argumentis, & experimentis demonstrata. London: Peter Short, 1600.](https://www.christies.com/img/LotImages/2015/CKS/2015_CKS_12114_0233_001(gilbert_william_de_magnete_magneticisque_corporibus_et_de_magno_magnet111348).jpg?mode=max)
GILBERT, William (1544-1603). De magnete, magneticisque corporibus, et de magno magnete tellure; Physiologia nova, plurimis & argumentis, & experimentis demonstrata. London: Peter Short, 1600.
![De magnete, magneticisque corporibus, et de magno magnete tellure; Physiologia nova, plurimis & argumentis, & experimentis demonstrata | William GILBERT | 1st Edition De magnete, magneticisque corporibus, et de magno magnete tellure; Physiologia nova, plurimis & argumentis, & experimentis demonstrata | William GILBERT | 1st Edition](https://www.milestone-books.de/pictures/003286_01.jpg?v=1614788566)
De magnete, magneticisque corporibus, et de magno magnete tellure; Physiologia nova, plurimis & argumentis, & experimentis demonstrata | William GILBERT | 1st Edition
1600 William Gilbert De Magnete : William Gilbert; Gvilielmi Gilberti : Free Download, Borrow, and Streaming : Internet Archive
![William Gilbert, De magnete (London: Peter Short, 1600). | St John's College, University of Cambridge William Gilbert, De magnete (London: Peter Short, 1600). | St John's College, University of Cambridge](https://www.joh.cam.ac.uk/sites/default/files/images/library/special_collections/magnet2.jpg)