Of Rain.— Appendix. 367 
In my former paper I mentioned my having 
collected from my gage, the rain water 
which fell on the 5th December, and exam- 
ined it in regard to muriatic acid, when it 
was found to contain a certain portion: also, 
that the next rain which fell after the 5th 
December, when there was no remarkable 
wind, was also examined, and found tu con- 
tain muriatic acid, but much less than before, 
namely, about +. This last I was led to as- 
cribe to the glazing of the earthern bottle. 
Since that time I have had an opportunity 
of examining this conjecture more fully. I 
filled the gage bottle with distilled water, 
and let it remain in the bottle three days, 
(the time the rain water on the 5th December 
remained in the bottle) and then subjected 
it to the usual tests. It manifested traces 
just sensible of both muriatic. and sulphuric 
acid; but the quantities were infinitely less 
than I had found in the rain water of the 
5th December. 
rable occasion, that the Eddystone Light-house was blown into the 
sea, with the Engineer who had erected it, and who had promised him- 
self that it would bid defiance to the elements. 
A vessel that broke from her moorings, was driven at the rate of 
30 miles per hour, for 8 hours successively. 
This storm continued for a week, so that the wind might be said to 
blow a hurricane each day, though the extreme violence which produced 
such effects was limited to about [2 hours, as nsual on such occasions, 
