1813.] Elements of Chemical 'Philosophy, 377 



The fifth division treats of the metals in the following order : 



1. Potassium. 



20. Cobalt. 



2. Sodium. 



21. Copper. 



S. Borium. 



22. Nickel. 



4. Strontium. 



23. Uranium. 



5. Calcium. 



24. Osmium. 



6. Magnesium 



23. Tungsten. 

 26. Titanium. 



7. Aluminum. 



8. Glucinum. 



27. Coiumbium. 



9. Zirconium. 



28. Cerium. 



10. Silicum. 



29. Palladium. 



11. Yttrium. 



30. Iridium. 



12. Manganese. 



31. Rhodium. 



13. Zinc. 



32. Mercury. 



14. Tin. 



33. Silver. 



15. Iron. 



34. Gold. 



16. Lead. 



35. Platinum. 



17. Antimony. 



?)ft. Arsenic. 



18. Bismuth. 



37. Molybdenum. 



19. Tellurium. 



38. Chromium. 



In the sixth division he treats of the fluoric acid, and of the 

 amalgam procured by the action of galvanism on mercury, m 

 contact with sal-ammoniac. 



In the seventh division we have several ingenious speculations 

 respecting the probable constitution of those substances which 

 have not hitherto been decompounded. These speculations may 

 be of considerable service in directing the investigations of future 

 experimenters ; but we see from the example of Lavoisier hov/ 

 jnuch risk every person runs of mistakes who ventures to indulge 

 in such speculations. 



Article IX. 



Scientific intelligence; and notices of subjects 

 connected with science. 



I. Explosion at WboUvich, 



Having been requested by different correspondents to give 

 some account of the dreadful explosion which happened some 

 time ago at Woolwich, we have m'ade some inquiries on the 

 subject : and the following are the facts, as far as we could learn 

 them. A very large room was filled with wood destined for 

 ship-building ; and by various obvious contrivances it was kept 

 constantly heated to a teniperature rather higher than 120"^. Tiie 



