OF THREE LARGE LOADSTONES. 395 
Explanation of Plate XII. 
Fig. 1. Represents the original size of Mr Newton^s mag^ 
netic ring, and the weight attached to it. See 
page 887. 
2. A magnet, surrounded by slips of iron AB, CD^ 
EF, GH, IK, and LM, described p. 888-9. 
8. 4. & 5. Horse-shoe magnets, with flat bars of soft 
iron, T, U, and V, attached to them, to shew the 
effect of completing and breaking off the magnetic 
circle ; see p. 889. 
6. Dr HoPE^s large magnet, shewing its unusual line 
of attraction CD ; p. 891^ 
7. The pretended pendulum-motion by magnetism^ 
p. 898. 
8. The pretended perpetual magnetic motion, p. 894» 
9. Represents Dr Hope^s large magnet, as it was sus- 
pended in Mr Deuchar's class-room, for the 
purpose of allowing the pupils attending to try 
its great power. 
