to be known as the Corowa Plan, was later accepted at the 1895 Premiers' Conference and formed the basis for the federation process over the following five years. In 1897, Garran published The Coming Commonwealth, an influential book on the history of the Federation movement and the debate over the 1891 draft of the Constitution of Australia. The book was based on material he prepared for a course on federalism and federal systems of government, which he had planned to give at the University of Sydney, but which failed to attract a sufficient number of students. Nevertheless, the book was both unique and popular, as one of the few books on the topic at the time, with the first edition quickly selling out. Soon after its publication the Premier of New South Wales George Reid, who had been elected as a New South Wales delegate to the 1897–1898 Constitutional Convention, invited Garran to be his secretary. At the Convention, Reid appointed him secretary of the Drafting Committee, at Barton's request; he was also a member of the Press Committee. Garran recorded in a letter to his family during the convention's Melbourne sitting that: The committee professes to find me very useful in unravelling the conundrums sent down by the finance committee... The last two nights I have found the drafting committee fagged [tired] and despairing, and now they have pitched the conundrums at me and gone out for a smoke; and then I worked out algebraic formulas to clear the thing up, drafted clauses accordingly, and when the committee returned we had plain sailing. Garran joked that the long work of the drafting committee breached the Factory Acts, the group (primarily Barton, Richard O'Connor, John Downer and Garran) often working late into the night preparing drafts for the convention to consider and debate the next morning. On the evening before the convention's last day, Barton had gone to bed exhausted in the small hours, Garran and Charles Gavan Duffy finishing the final schedule of amendments at breakfast time. The convention concluded successfully, approving a final draft which ultimately, aside from a small amendment arranged at the last minute in London, became the Constitution of Australia. Throughout 1898, following the completion of the proposed Constitution, Garran participated in the campaign promoting Federation leading up to the referendums at which the people of the colonies voted whether or not to approve the