I have one source claiming there were 14 petitions on the matter and another claiming that there were 645. This massive disparity in numbers has thrown me somewhat and I'm unable to track down the source of either of these claims. Does anyone here have a reliable number? Failing that does anyone here own the book A Mad Bad Dangerous People by Boyd Hilton? If you do can you check p. 411 and p. 68, my footnote directs me there but i don't have the book.
Edit: No idea why I capitalised the "You" the title is just A Mad Bad Dangerous People.
Page 68 does not have anything about petitioning, the relevant paragraph on page 411 reads:
According to Whig myth, the Pittite regime (by now increasingly identified as Tory) collapsed in 1830 amid country-wide demands for parliamentary reform. In reality no petitions calling exclusively for reform were presented between 1825 and 1829,* despite many thousands on the subjects of Catholics, slaves, and corn. Even Grey abjured reform in 1827, and the issue seemed dead. Moreover, its eventual revival was more a consequence than a cause of Wellington's fall, which as due to discontent within his party rather than in the country at large. [*Though fourteen petitions mentioned reform collaterally, i.e. as a means to achieve some other object or objects.]
I will look it up at my library tomorrow if noone answers until then.