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Three lamps hung by chains from the ceiling, their light softened by rich silk shades. One wall was almost entirely occupied by glass cases containing chemical apparatus, tubes, retorts and other less orthodox indications of Dr.

They were rewarded by a flow of pancreatic juice greater in amount than any obtained in their other experiments. From the filtered mixture they isolated in an impure form, a solid substance which, when introduced into the circulation, has a similar action. To this, of which the exact chemical make-up is as yet an unknown, they gave the name secretin.

After this operation it presents the appearance of ordinary sheet lead, but though the physical porosity has disappeared, the chemical porosity is intact, and this alone comes into play in accumulators. When a negative plate is constructed in this manner, it is ready to be combined with the positives to form an accumulator.

The work must be against some force, such as gravity or elasticity, which can undo the work, i.e., bring about an effect opposite to that of the work. These principles are further illustrated by the *Storing of Energy through Chemical Means.*—A good example of storing energy by chemical means is that of decomposing water with electricity.

Yet he is troubled with the idea that this specific something may be "nothing more than accidental chemical peculiarities of cells." But would these accidental peculiarities be constant? Do accidents happen millions of times in the same way? The cell is without variableness or shadow of turning.

However that may be, this last evil action had a decisive effect on him; it abruptly traversed that chaos which he bore in his mind, and dispersed it, placed on one side the thick obscurity, and on the other the light, and acted on his soul, in the state in which it then was, as certain chemical reagents act upon a troubled mixture by precipitating one element and clarifying the other.

It is true that we can explain away our inferiority by referring to the German breach of faith, which automatically created conditions for which we were unprepared. This is a comfortable solution. But had chemical warfare been a strongly developed and accepted method of war before the outbreak of hostilities, would we then have been prepared?

There was much probability that the agate contained some minute portion of saline matter, not easily detected by chemical analysis, either in combination or intimate cohesion in its pores. To determine this, I repeated this a second, a third, and a fourth time.

But after repeated assays with fire and chemical preparations on all the different sorts of stone to be picked up, it is still a desideratum. Nor did my experiments with a magnet induce me to think that any of the stones I tried contained iron. I have, however, heard other people report very differently on this head.

All of this is a purely chemical matter, and can be demonstrated at will in a test tube in the laboratory. But this union and disassociation is just what occurs as the foundation of respiration.