Observe, the word _agger_ remains at Edgeware, the _Suellanacis_ of our king Casvelhan, uncle to Mandubrace: it is the Roman road called Watling-street. Egham by Stanes acknowledges the like derivation, being upon the _via Trinobantica_ at Stanes, the _Ad Pontes_ of the Romans. Many more like instances I could give. These sort of temples were properly dedicated to the Divine Spirit, the author of motion, which moved upon the face of the new-created matter, as Moses writes, and were more particularly assigned to the religious festivity celebrated at the summer solstice, when the pigeon was the first and peculiar sacrifice of the season. I shall not speak more about them here: but besides this temple, the Britons had a magnificent _cursus_, or place for sports and races on foot, in chariots, on horseback, when they celebrated their public sacrifices and religious observances on the solstices and equinoxes. These _cursus_’s were likewise made of mounds of earth thrown up in two parallel lines: such a one is that at Leicester in the meadow near the river; it is called _Rawdikes_, from the ancient name of the city, _Ratæ_, capital of the _Coritani_; such another there is, called _Dyke-hills_, in the meadow of Dorchester, Oxfordshire, where the Tame and the Isis unite; _Dobuni_. Exactly such another, belonging to our _Trinobantum_, is that we call _Long-acre_, or _agger_; which, we may be confident, was originally two parallel banks, the whole length of that street, and breadth: it has the same gentle sweep, or curve, as those other _cursus_’s: it then commanded a beautiful prospect over the present Covent-garden to the Thames, and an extensive view, both upward and downward, of the river, and into Surrey. The banks were designed for the spectators, and admirably well adapted to the purpose. So that we may justly conclude, Knave’s-acre was the proper temple to the city of _Trinobantum_, and Long-acre their solemn place of races, accompanying the religious celebrations of the ancient citizens here, in the time of Cæsar. Long-acre is 1400 English feet in length, which is exactly 800 Druid cubits, two furlongs of the east, two _stadia_. Give me leave to mention my fancy or conjecture of the founder of this alate temple and _cursus_, viz. ELI, father of Immanuence, and of Casvelhan: there was his _tumulus_ on Windmill-street edge, at the end of Piccadilly: a windmill was erected on it in after-times. From it descends the street called Hedge-lane, from _agger_, the _tumulus_. I suppose the name of _Piccadilly_ may be from its elevation, a Hybrid word composed from _peak cad Eli_, the _tumulus ducis Eli_. _Cad_ is a common name of the Welsh kings.