5S 
Dr. Storer's account of an 
of water, which has been tapped in the harbour, lies at such 
a depth, and under a stratum of clay, there is no reason to 
think that it can be discharged any where in the bay, till it 
arrives at the ledge of rock where the clay terminates. Here, 
among the fissures of the rock, it may find its exit ; and this 
is the more likely, as it is known that the bed of the sea at 
the back of the Smithwick sand, is at so much a lower level. 
Admitting this supposition to be correct, or nearly so, it 
seems to follow, that the issue of a body of fresh water, 
through a fissure in rock forming the bed of the sea, would 
meet with more or less resistance at different times of the 
tide; because the two columns of fluid in meeting, would act 
upon one another in the ratio of the altitude of each, taking 
into the account the difference of their specific gravity ; and 
thus, if there is any approach to an equilibrium, an operation 
would result, analogous to the flux and reflux of the tide, near 
the mouth of rivers. 
This hypothesis is specious, and accounts for the flux and 
reflux of the water from the bore, as well as for the singular 
undulation of the discharge in a boisterous state of the sea : 
but the greater relative altitude to which the column of spring 
water is elevated after much rain, and the consequent pro- 
longed discharge of it during each tide, seems to militate 
against its correctness; since, in a case, where by the suppo- 
sition a balance is nearly established, an additional impetus 
communicated to the column of spring water, ought to pro- 
duce the opposite effect, by enabling it to overcome the re- 
sistance of the same column of sea water during a longer 
period of each tide, than under the usual circumstances. 
It is not improbable, that this whole subject might be 
