P. Austin Nuttall, The Nuttall Encyclopædia
“ Tay, a river of Scotland whose drainage area lies almost wholly within Perthshire; rises on the northern slope of Ben Lui, on the Argyll and Perthshire border, and flowing 25 m. NE. under the names of Fillan and Dochart, enters Loch Tay, whence it sweeps N., SE., and E., passing Aberfeldy, Dunkeld, Perth, and Dundee, and enters the North Sea by a noble estuary 25 m. long and from 1⁄2 m. to 31⁄2 m. broad; chief affluents are the Tummel, Isla, Almond, and Earn; discharges a greater body of water than any British stream ”
