i88o.] 
On Water and Air. 
261 
There is also an iron bottle similar to what used to be 
operated upon by that glorious old fellow, Faraday. He 
had these cast-iron bottles made. They are half an inch 
thick. The bottles were filled with water, and by placing 
them in a freezing mixture he used to burst those bottles. 
I think that we shall find that the bombshells and the bottles 
have been burst. [Upon the vessel containing the freezing 
mixture being uncovered and searched, it was found that 
the bombshells and iron bottles had been burst by the 
freezing of the water contained in them. One of the shells 
measured 3J inches in internal diameter, and varied in thick- 
ness from three-quarters to seven-eighths of an inch.] This 
will give you an idea of the irresistible power exerted by the 
molecules of water in passing from the liquid condition into 
the solid condition. 
