CONTENTS. 
iil 
ART. PAGE 
M. De Laplace. 2. Mathematical Prize Question. 3. Survey 
of the Heavens. 4. Improvement in Metallic Casting. 5. Canal 
Navigation. 6. New Lithographic Press. 7. New Mode of Print- 
ing Designs. 8. Artificial Slates. 9. Damp Walls. 10. Improve- 
ment in Trusses. 11. Result of the Experiments made by order 
of the Board of Longitude, for the Determination of the Velocity 
of Sound in the Atmosphere. Drawn up by M. Araco 
II. Cuemicat Science. 
1. On a new Class of Compounds of Sulphur, by Dr. Zeise, of 
Copenhagen. 2. On a peculiar Sulphate of Alumina, by Mr. 
Phillips. 3. Effect of Cold on Magnetic Needles, 4. Frauds 
on Bankers’ Checks. 5. Pyroligneous Ether. 6. Phosphate of 
Soda and Ammonia. 7. Ona beautiful Blue Colour. 8. Sugar- 
Cane Juice. 9. Salep and Magnesia. 10. Affinity of Glass for 
Water. 11. On the Porosity of Glass and Siliceous Bodies. 
12. On the Temperature produced by Vapour, and onthe Tem- 
perature of Vapour. By M. Faraday, Chemical Assistant, 
Royal Institution. 13. Metallic Titanium. 14. Congelation of 
Mercury. 15. Variation of Thermometers. 16. New Electro- 
Magnetical Experiments, Ampere. 17. New Electro-Magnetic 
Experiments, Sebeck. 18. Electro-Magnetic Effect of Light- 
ning. 19. Conduction of Electricity by Amadou. 20. Electrical 
Effect. 21. New Process for Extracting Strychnine. 22. Smalt 
in Sugar. 23. On the Employment of Potatoes in Steam-Engine 
and other Boilers. 24, On the manner of estimating the quantity 
of Sulphuretted Hydrogeu Gas in Sulphureous Mineral Waters. 
25. Flowers of the common Mallow an excellent Test of Alkali. 
26. Method of colouring Alum Crystals . 
Il. Narurat Hisrory. 
1. On the Suspension of Clouds, by M. Gay-Lussac. 2. Me- 
teors, on their nature. 3. Aérolite. 4. Remarkable Aérolite. 
5. Earthquake at Aleppo. 6. Earthquake. 7. Dutrochet on 
the Influence of Motion on the Direction of Vegetables. 8. 
Trifolium Incarnatum. 9. Green Ore of Uranium. 10. Por- 
celain Clay—Gold in Cheshire. 11. Coal Seam. 12. Inoculation 
and Vaccination. 13. Fracture of Calculi in the Bladder. 14. 
Prussian Travellers. 15. New Series of the Geological Trans- 
actions. 16. On the Native Country of the Potato. 17. Land- 
. 430 
. 433 
slip . . 446 
XVIII. Meteorological Diary, for the Months of ee 
October, and November, 1822 . wu, : - . . 456 
Index 
