The CONTENTS. 
1. An account of fome magnetical Experi- 
ments, exhibited before the Royal Society on 
Tkurfday the jgth of February 1746 } and 
of which the President, who had before feen 
the fame performed with more deliberation 
on the ii th of the fame month , was pleafed 
to make the following report. ibid. 
2. An Account of Jome new Experiments 
lately made with Artificial Magnets, by the 
fame. p. 662 
3. Some further Experiments relating to the 
general Phenomena of Magnetifm, by the 
fame. p. 665 
III. A Difcourfe concerning the Ufefulnefs of 
Thermometers in Chemical Experiments ; 
and concerning the Principles on which the 
Thermometers now in Ufe have been con- 
frucled ; together with the Defer iption and 
Ufes of a Metalline Thermometer, newly in- 
vented by C. Mortimer, M.D. Sec R.S. 672 
IV. A Continuation of a Paper concerning 
Electricity, by William Watfon, F. R. S. 
printed in thefe Tranf. N. 477, Article I. 
ending p. 501. p. 695 
V. A Sequel to the Experiments and Obferva- 
tions tending to illuftrate the Nature and 
\ Properties o/'EleCtricity ; in a Letter to the 
Royal Society from the fame. p. 704 
