Contains a drawing by Joule of the Dip-Circle [an instrument used for measuring the inclination of the Earth's magnetic field],; this is similar to one in vol 1 of Scientific Papers, p.578.
Former reference: Pate ref. 187.
Contains a drawing by Joule of the Dip-Circle [an instrument used for measuring the inclination of the Earth's magnetic field],; this is similar to one in vol 1 of Scientific Papers, p.578.
Former reference: Pate ref. 187.