iv CONTENTS. 
Art. XXXII. Scientific Intelligence, - - 216 
I. NATURAL PHILOSOPHY. 
Astronomy. 1. Heat discovered in the Moon’s Rays. 2. On 
the Transit of the Comet of 1 819* 5. Volcanoes in the Moon, ib. 
Optics. 4. Optical Properties of Euclase. 5. A new Primi- 
tive form detected in Boracite. 6. Optical Properties of 
Leucite or Amphigene. 7- Distribution of the Colouring 
Matter in Topaz. 8. Aerial Shadows seen from the Sum- 
mit of Ben Lomond, - - 21 7-2 1 8 
Meteorology. 9- Mean Temperature of Leadhills for Ten 
years. 10. Quantity of Rain which fell at Leadhills. 11. 
On the Temperature of the German Ocean, - 219-220 
Magnetism. 12. On the Effects of Magnetism on Chrono- 
meters, 13. Effect of Position on Magnetic Masses, 220-221 
Hydrodynamics. 14. Water Velocipede. 15. Method of 
keeping off the Back-Water from Mills, 221-222 
i 
II. CHEMISTRY. 
16. On the Solution of Phosphorus in Sulphuret of Carbon. 
17* Dr Henry on Coal and Oil Gas. 18. Dr Ure’s Dictio- 
nary of Chemistry on the Basis of Mr Nicholson’s, 222-224 
III. NATURAL HISTORY. 
Mineralogy and Geology. 19. Buckland on the Structure 
of the Alps. 20. Structure of Crystals, - 224, 225 
Zoology. 21. Notices relating to the Nightingale. 22. Ana- 
lysis of one of the Vertebrae of the Orkney Animal. 23. 
Discovery of the Fossil Elk of Ireland in the Isle of Man. 
24. Facts in regard to the Bones of the Rattlesnake. 25. 
Tapir of Malacca. 26. Bojanus’s Anatomy of the Testudo. 
27- Helix Carychium of Gmelin. 28. Instinctive attach- 
ment of the Linnet to its Brood, - - 225-229 
Botany. 29. Remarkable Fig-Tree. 30. Plants of Nepaul. 
31 . Spikenard of the Ancients. 32. Translation of Brown’s 
Essay on the Asclepiadese, - - 229-230 
IV. GENERAL SCIENCE. 
33 . New System of Mineralogy. 34. Method of Playing on 
the Violin and Violincello at the same time. 35. Notice 
regarding the Expedition to explore the Source of the 
Missisippi. 36. Prevention of Rust. 37- Latitude and 
Longitude of Places in New South Britain. 38. Method 
of consuming Smoke. 39* School of Arts, - 231-234 
Art. XXXIII. List of Patents granted in Scotland since 23d 
.January 1821, 
235 
