Haughton — The Atomic Weights of the Chemical Elements. 89 
without brothers or sisters, and seems to resemble the fabled Isis of 
Egyptian mythology — 
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Table of Fifteen Elements, with Name of Discoverer and Date. 
ELEMENT. 
NAME. 
DATE. 
1. 
Hydrogen. 
Cavendish. 
1781 
2. 
Lithium. 
Arfwedson. 
1817 
3. 
Beryllium. 
Wohler. 
1828 
4. 
Boron.] 
Gay Lussac and Thenard. 
1808 
5. 
Carbon. 
Prehistoric. 
6. 
Nitrogen. 
Eutherford. 
1772 
7. 
Oxygen. 
Priestly. 
1774 
8. 
Fluorine. 
Moissan. 
1886 
9. 
Sodium. 
Davy. 
1807 
10. 
Magnesium. 
Davy. 
1808 
11. 
Aluminium. 
Wohler. 
1828 
12. 
Silicon. 
BerzeHus. 
1823 
13. 
Phosphorus. 
Brandt. 
1669 
14. 
Sulphur. 
Prehistoric. 
15. 
Chlorine. 
Scheele. 
1774 
