Page:History of the Royal Society.djvu/255

Rh There were also some of the like Bubbles on the Surface of the Water just over it; as if either some Exhalations came out of it, or that it did excite some Fermentation in the Parts of the Water contiguous to it.

''There was little sensible Difference of Transparency in this Stone, before the putting under Water, and after: To be sure the milky white Parts continued as before, but more different in Weight than in the former. For whereas, before the putting into the Water, the Weight was18 gr''. after it had lain in about twenty-four Hours, the Weight was 20 gr. ; so the Difference was1 gr. .

The same Stone was infused in the Water scalding hot, and so continued for a while after it was cold, but got no more Weight, than upon infusing in the cold; neither was their any sensible Difference in the Weight both times.