電氣分解爐は既にアルミニウム、ナトリウム、カリウム、マグネシウム、バリウム、ストロンチウム等の金屬を其んお溶融鹽より製造し得るに至らしめたり。此處理法に適すべき普通金屬の大多數に就きては既に試驗せられたるに相違なきも此種の新方法の尚ほ多く…

Very lame and imperfect theories are sufficient to suggest useful experiments, which serve to correct those theories, and give birth to others more perfect. These then occasion farther experiments, which bring us still nearer to the truth,…