Animal electricity and magnetism, &c. demonstrated after the laws of nature, with new ideas upon matter and motion : in two parts / by the Rev. John Bell, professor of that science.

  • Bell, John, professor of animal magnetism.
Date:
[1790?]
Catalogue details

Licence: Public Domain Mark

Credit: Animal electricity and magnetism, &c. demonstrated after the laws of nature, with new ideas upon matter and motion : in two parts / by the Rev. John Bell, professor of that science. Source: Wellcome Collection.

Provider: This material has been provided by University of Bristol Library. The original may be consulted at University of Bristol Library.

    74/78 (page 40)
    flories, like tradition, which are handed down from gene ration to generation, and become improbable, like an tiquity, loofe their former luftre. I would advife m pupils to try thofe experiments I have fhewn them fir! and try the others afterward. To make an Electric or Magnetic a l Apparatus I shall not give you a full account of the Apparati of our Society in Paris. It is more like a grove. Mini which I had in London and Dublin, is a large oa tub, eight feet in diameter, well pitched in the infidi about an inch thick (that belonging to our Society hi looking glaffes all around it), infulated upon four gla feet bottles of water well corked; you magnetife th bottles, and lay them down, the neck of one in the bot torn of the other all round, fo that the laft comes t the centre. You may fill up the fpace with broken bot ties, or any vitrifiable matter, brimflone, or refinou matter, minerals, &c. fill it up all but fix inches; pu fome loadftones and artificial magnets in different direc tions, then cover the whole to the edge with fine dr river fand—put the lead over; place in the middle a po limed iron bar about eight feet high, with fprigs to ii to attraft the univerfal fluid which concentres itfelf ii the refervoir. At the far corner place an Arbor Vitt m a box, and place under it a flrong magnet, the Nort! pole upwards; the South pole is fixed in a hole upoi the cover, by that means you increafe the motion of th< tree