IV 
CONTENTS. 
Hydrodynamics. 1 2. Perkins’s Steam-Engine. 13. Perkins’s 
Steam-Guns, - - - - 367 
II. CHEMISTRY. 
14>. On the Nature of the Atmosphere of Seas. 15. New Pyro- 
phorus of Tartrate of Lead. I6. On the Hydrioduret of 
Carbon. 17. Test-Paper for Acids, Alkalies, and Com- 
pound Salts. 18. Mineral Waters. 1 9. Reduction of Ura- 
nium. 20. On the Corrosion of the Coppering of Ships, 367-369 
HI. NATURAL HISTORY. 
Mineralogy. 21. Notice regarding a Fossil having the smell 
of Truffles. 22. Forms of Crystallisation of Melted Sulphur. 
23. Greywacke of the Apennines. 24. Secondary Granite. 
25. Humboldt’s Geognosy. 28. Iron found in Bogota, in 
America, - - - - - 370, 374 
Botany. 26. Memoir on the Structure of the Monocotyle- 
dones, - - - - - 372 
Zoology. 27. Occasional Abundance and supposed Migrations 
of Field-Mice. 28. Salmon-Fisheries in the river Tay. 29* 
Determination of the question relative to the origin of the 
domestic Dog, by M. Desmoulins, - - 373-376 
IV, general science. 
.30. Earthquake felt at Sea. 31. Dr Hibbert’s Philosophy of 
Apparitions.” 32. Ancient Inscriptions on Sheets of Lead. 
33. Pompeii and Vesuvius. 34. Effects of an Earthquake 
on the Vegetation of Wheat. 35. Maize Grain remarkably 
retentive of the power of Germinating. 36. Improved Slid- 
ing Rule for Gauging Casks. 37* On Charcoal from dif- 
ferent Woods. 38. Mr Innes’s New Tide-Tables. 39. Mr 
Galbraith’s Stereotyped Mathematical Tables. 40. En- 
graving of a Brazilian Forest, - - 378-384 
Art. XXXI 1 1. List of Patents granted in Scotland from 4th 
December 1823 to 10th March 1824, 
385 
