Davis's manual of magnetism : including galvanism, magnetism, electro-magnetism, electro-dynamics, magneto-electricity, and thermo-electricity (1854)
Davis, Daniel · Boston : Palmer and Hall · leaf 41
PROTECTED BATTERIES. 25 Other porous or membranous substances, such asthick brown paper, or bladder, will answer the samepurpose as leather, in preventing the ready admixtureof the solutions, and allowing a free -oassage to theelectrical current. When the partition is sufficientlythin or permeable,…
