Magneticall aduertisements: or Diuers pertinent obseruations, and approued experiments, concerning the natures and properties of the load-stone Very pleasant for knowledge, and most needfull for practise, of trauelling, or framing of instruments fit for trauellers both by sea and land. Whereunto is anexed a breife discouerie of the idle animaduersions of Mark Ridley Dr. in Physicke, vpon a treatise entituled Magneticall aduertisements.

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Author:	Barlow, William, d. 1625.
Title:	Magneticall aduertisements: or Diuers pertinent obseruations, and approued experiments, concerning the natures and properties of the load-stone Very pleasant for knowledge, and most needfull for practise, of trauelling, or framing of instruments fit for trauellers both by sea and land. Whereunto is anexed a breife discouerie of the idle animaduersions of Mark Ridley Dr. in Physicke, vpon a treatise entituled Magneticall aduertisements.
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Print source:	Magneticall aduertisements: or Diuers pertinent obseruations, and approued experiments, concerning the natures and properties of the load-stone Very pleasant for knowledge, and most needfull for practise, of trauelling, or framing of instruments fit for trauellers both by sea and land. Whereunto is anexed a breife discouerie of the idle animaduersions of Mark Ridley Dr. in Physicke, vpon a treatise entituled Magneticall aduertisements. Barlow, William, d. 1625., Barlow, William, d. 1625. Breife discovery of the idle animadversions of Marke Ridley. aut, Gilbert, William, 1540-1603. De magnete. London: Printed by Edward Griffin for Timothy Barlow, and are to be sold at his shop in Pauls Church-yard, the signe of Time, 1618.
Subject terms:	Ridley, Mark, 1560-1624. -- Magneticall animadversions Magnetism -- Early works to 1800.
URL:	https://name.umdl.umich.edu/A04327.0001.001
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Table of Contents

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title page

TO THE RIGHT WORSHIPFVLL, DIS∣creet, and learned Gentleman, S^ir DVDLEY DIGGES Knight.

THE PREFACE to the Reader.

Contents of this Treatise.

MAGNETICALL Aduertisements.

CHAP. I. Of the magneticall power and force of the whole Globe of the Earth.

CHAP. II. The ambiguity of the North and South ends of Magnets and Magneticall bodies explained, and Doctor Gil∣bert therein defended.

CHAP. III. Certaine generall obseruations of the nature and properties of the Loadstone.

CHAP. IIII. By what meanes the chiefe points of any Magnet of what forme soeuer may easily be found out.

The second way.

The third way.

The fourth way.

The fift way.

A sixth way.

CHAP. V. The manner of capping both with single and double cappes and the nature of them.

CHAP. VI. Of cementing and peecing of Loadstones.

CHAP. VII. Of the variation of the Magneticall Needle with the Appurtenances therevnto belonging.

CHAP. VIII. A discouery of errours committed in making and touch∣ing Magneticall Needles and Wyars of sayling Compas∣ses, with an aduise for the true and right making and touching of them.

CHAP. IX. Of the touching with a Laadstone capped and without the cappe.

CHAP. X. Of the fashioning of the compasse needle.

CHAP. XI. A Sayling Compasse fitted for obseruing at Sea the varia∣tion, amplitude of either sunne or starres, capes or trendings, &c.

The Vses.

CHAP. XII. A comparison of the seuerall vses of the Horizontall and inclinatory Magneticall Needles.

To the Worshipfull my good friend, M^r. William Barlow at Easton by Winchester.

Faults escaped.

title page

TO THE RIGHT NOBLE AND WOR∣thy minded industrious Gentle∣men, and others who are any way addicted vnto MAGNETICALL Knowledge.