Elgin-Middlesex-London consists of:
(a) the County of Elgin;
(b) that part of the County of Middlesex comprised of the Municipality of Thames Centre;
(c) the City of St. Thomas; and
(d) that part of the City of London lying southerly of a line described as follows: commencing at the intersection of the westerly limit of said city with Dingman Creek; thence generally easterly along said creek to the westerly production of Southdale Road West; thence easterly along said production, Southdale Road West and Southdale Road East to White Oak Road; thence southerly along said road to Exeter Road; thence easterly and northeasterly along said road to Highway No. 401; thence northeasterly and easterly along said highway to the easterly limit of said city.
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