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III; Account of an irregular 'Tide in the 
River of Forth, by Mr . Edward Wright. 
Read May 3. 
1750 
A S the following Account of a very 
uncommon anomalous Tide in the 
River of Forth , contains feveraiCircumftances worthy 
Obfervation, 1 thought it might not be difagreeable 
to that learned and famous Society to which I ad- 
drefs. ir. 
There are in this River, at Ebbing and Flowing, 
certain irregular Motions, not to be found in any 
other River in Scotland , perhaps in Great Britain , 
or even in all Europe , called by the common People 
betwixt the Villages of Alloa and Culrofs , Leakies,- 
which Name 1 fhall likewife make ufe of, for want 
of a better. This Leaky is this : When the River 
is flowing, before high Water, it intermits and ebbs 
for a conftderable time, after which it refumes its 
former Courfe, and flows till high Water j and, vice 
•verfa , in the Ebbing, before low Water, the River 
flows again for fome time, and then ebbs till low 
Water. The Leaky begins at a Place called Queens 
Ferry , feven Miles above Leith , at neap Tide, and 
low W ater, and goes to the Houfe of Maner , which 
is about twenty-five Miles above Queens Ferry y which 
is to be underftood by Water; for in this River, 
from a little above Alloa to Stirling , there are fuch 
a prodigious Number of Turnings and Windings, 
that though it be but four Miles betwixt thefe two 
Places by Land, yet it is twenty-four by Water. 
This I take notice of rather, as I take thefe Windings 
to be the Caufe of the Leakies. At Neap Tide and 
high 
