An abundance of nervous energy is very advantageous, for, as has been intimated in a former chapter, nervous energy is diffused and spread over all the pathways that are easily permeable to its distribution.

The only way of really nursing a real patient is to have an iron bedstead, with rheocline springs, which are permeable by the air up to the very mattress (no vallance, of course), the mattress to be a thin hair one; the bed to be not above 3-1/2 feet wide.

In place of the air now comes, so it was reasoned formerly, the ether which fills the spaces of the universe and is the carrier of light and of electro-magnetic phenomena; there were good reasons to assume that the earth was entirely permeable for the ether and could travel through it without setting it in motion.