during a Storm. 329 
Collecting now these results into a Tabular 
form for the sake of comparison,— 
tub on the Society’s premises after the > 3 ™@uriate soda. 
oth December ........0240 Boab ceabsneuinn tue 
2. Found in 7500 grains rain water from 
3 ‘ : 86 
rain-gage just after the storm...... ssesee 
1. Found in 7500 grains rain water rte grains, 
3. Found iu 7500 grains rain water rant 81 
the lead cistern, taken justafter the storm § * 
4, Found in 7500 grains rain water from 
lead cistern, taken before the storm; 
also iu the same quantity of rain water > .13 
in the gage taken from the produce of 
a rainy day subsequent to the storm... 
It is scarcely necessary to observe that I 
have assumed all the muriatic acid found to be 
combined with soda, though it is well known 
that sea-water contains muriate of magnesia, 
&c., as well as common salt. My object is 
to shew that sea-water was brought by the 
wind, without enquiring’into the proportion 
of its elements. 
In order to form a judgment which of these 
waters is most likely to give a correct indica- 
tion of the quantity of saline matter brought 
by the storm, we must consider that the w4- 
ter of the rain-gage can on no account under 
rate the quantity of salt. ‘The bottle might 
impart salt to the water, but could not ab- 
stract any from it. The water of the lead 
die 
