Letters of Euler on Natural Philosophy

Addressed to a German Princess; Vol. II.

translated by the Rev. Henry Hunter
and annotated by Prof. David Brewster. 3rd Ed. (1832)

These letters continue the previous discussion, before returning to physics where electricity in its infancy is investigated. Methods of measuring longitude are detailed, and there is a lot of discussion about magnetism. There is a return to optics, where lenses and various applications such as microscopes, telescopes, etc. are investigated. Finally, some astronomical questions are presented.


Plate IV Figures.


Letters I - IX : The discussion of vol. I is completed.

Letters X - XVII : Monads : Can matter be divided indefinitely or not?

Letters XVIII - XXII : Thoughts on colours, sound and light, the human voice.

Letters XXIII - XXIX : Principles of Electricity.

Letters XXX - XXXIX : Leyden jar; phenomena involving electricity incl. lightning.

Letters L - LV :The Longitude.

Plate V Figures.

Letters XLVI - LIII: Ways of measuring longitude.

Letters LIV - LX : The Compass .

Letters LXI - LXXI : Magnetism.

Letters LXXII - LXXXI : Dioptrics .

Letters LXXXII - LXXXIX : Lenses and simple optical instruments .

Plate VI Figures.

Letters XC - XCVIII : Optical instruments cond'd.

Letters XC1X - CIX : Lens defects and corrections.

Letters CX - CXIX : Phenomena relating to atmospheric Refraction.

Ian Bruce. June 9, 2008 latest revision. Copyright : As far as I know, there are no copyright restrictions on this early edition of this work.