Page "Prime Minister of the United Kingdom" Paragraph 67

Substantively, it increased the franchise 65 % to 717, 000 with the middle class receiving most of the new votes.

The representation of 56 rotten boroughs was eliminated completely and half the representation of 30 others ; the freed up seats were distributed to boroughs created for previously disenfranchised areas.

However, many rotten boroughs remained and it still excluded millions of working class men and all women.