The Alma Senate division is defined in the Consolidated Statutes of Canada (1859) as "The Parishes of Long Point, Pointe-aux-Trembles, Rivière des Prairies, Sault aux Récollets, in the county of Hochelaga, and that part of the Parish of Montreal which lies to the East of the prolongation of St. Denis Street; the County of Laval, that part of the City of Montreal which lies to the East of Bonsécours and St. Denis Streets, and their prolongation."
The Bedford Senate division is defined in the Consolidated Statutes of Canada (1859) as "The Counties of Missisquoi, Brome, and Shefford."
The Inkerman Senate division is defined in the Consolidated Statutes of Canada (1859) as "The Counties of Argenteuil, Ottawa and Pontiac."
The Kennebec Senate division is defined in the Consolidated Statutes of Canada (1859) as "The Counties of Lotbinière, Mégantic and Arthabaska."
The demarcation of the De la Durantaye Senate division provides an explanation of what constitutes the "remainder of the County of L'Islet".
The Mille Isles Senate division is defined in the Consolidated Statutes of Canada (1859) as "The Counties of Terrebonne and Two Mountains."
The Montarville Senate division is defined in the Consolidated Statutes of Canada (1859) as "The Counties of Verchères, Chambly and Laprairie."
The Rigaud Senate division is defined in the Consolidated Statutes of Canada (1859) as "The remainder of the Parish of Montreal, and the Counties of Jacques Cartier, Vaudreuil and Solanges."
The Victoria Senate division is defined in the Consolidated Statutes of Canada (1859) as "The remainder of the City of Montreal exclusive of the Parish."