4S Experiments with the Oxi-hydroge7i Blow-pipe. 



3. A Siberian Bekvl was fused, with an exhibition of most 

 Irilliant light. 



4. An Oriental Topaz rapidly fused, with beautiful light. 



5. Some dust, which fell from the atmosphere at iV/e5,9mo, evi- 

 dently volcanic, and under the lens of the microscope exhibiting 

 the semblance of minute cinders, part of which was attracted 

 bv the magnet, fused into dark glassy beads. 



(). Brown Pumice Stone was fused into a dark brownish 

 glass, approximating to obsidian ; and I have do doubt but that 

 they originate in the same source. 



7. Red Coral exhibited a painfully intense light, and fell 

 into a white powder, exhaling a marine odour. 



8. White Pumice Stone fused into a smni-trunsparent 

 glass. 



9. Diamond Powder, mixed with olive oil, being exposed 

 to the full blast of the ignited gases, in the bowl of a tobacco- 

 pipe, exhibited a jet of brilliant stars. 



10. Gold Wire entered into tranquil fusion . 



11. Wood Tin reduced to a powder, and mixed np with 

 oil, placed in a nidus of charcoal, was reduced, and brilliant 

 metallic globules, accompanied during reduction with a violet 

 flame, were obtained. This substance was the most refractory 

 in our experiments. 



12. The Jacinth, from Ceylon, was instantly /iweii into a 

 globule. 



13. Obsidian immediately melted. 



14. Black Oxide of Manganese was speedily reduced. 

 ISlavganfse melted, but was somewhat refractory. 



15. Cologne Basalt was fused into a dark gray mass. 



IG. Vesuvian, resembling a semivitrified cinder, was fused 

 into a black glass. 



17. Pozzolano was fused into a dark mass, and became 

 powerfully attracted by the magnet after Jusion. It had no 

 attraction whatever, previously. 



18. Iron Ore from Bradford Shelf \xon-woxk^, containing 

 nearly 70 per cent, of iron, was fused and reduced, 



19. A Steel File burnt with uncommon splendour y and 

 fused instantly. 



20. Two pieces of a Tobacco-Pipe were fused into glass, 

 and astglutinaled together. 



21. Steatite (Magnesian) vyas fused with vivid light, and 

 two pieces agi^lutinated. 



22. A piece of Talc yi^ie^i with intense splendour, accompa- 

 nied with a beautiful iris. 



23. Grains of Flatimim, Gold, &£c. instantly fused into a glo- 

 iMile. 



24. Smalt 



