IV 
CONTENTS. 
Electro-Magnetism. 12. New Phenomenon in Electro-Mag^ 
netism, - - r - 185 
Meteorology. 13. Mean Temperature of London for 1822. 
14. Mean Temperature of the Canaries. 15. Temperature 
of the Springs on Ben Nevis. l6. Great Heat at New South 
Wales. 17* Results of a Series of Hydro-thermometrical 
Observations made in the Frith of Forth. 18. Temperature 
of the Carribbean Sea at Great Depths, - 186-190 
II. CHEMISTRY. 
. 19. Determination of the Masses of the Molecules of Bodies. 
20. Application of the Theory of Determinate Proportions 
to Organic Compounds. 21. Simple Method of liquefying 
the Gases. 22. On the Expansion of Gases of different 
densities by Heat. 23. On Bitumen in Stones. 24. Com- 
position of James’s Powder. 25. Gold crystallised from its 
solution in Sulphuric Ether. 26. On the Fusion of Plum- 
bago and Charcoal. 27- Cagnard de la Tour’s Experiments 
on the Vaporisation of Fluids, - - 190-196 
III. NATURAL HISTORY. 
Mineralogy. 28. Characters of Amber. 29. Rose on Felspar, 
Albite, Labradorite and Anorthite, - I96-I98 
Zoology. 30. The Woodcock, - - 198 
IV, gene science. 
31. Chinese Year. 32. Introduction of Vaccination into China. 
33. Cutting of Steel by Soft Iron. 34. Granite for London 
Bridge, 201, 202 
Art. XXXI I. List of Patents granted in Scotland from 8th 
August to 4th December 1823, 
203 
