the final authorized plan, and feuing plan, of 1767. These were followed by the circus plan variants of 1770, 1774 and 1780. Despite not being adopted, Craig retained the confidence of the magistrates and merchants who dominated it. For example, in 1774 the Merchant Company of Edinburgh asked Craig to plan it a new street, south of the Old Town's Cowgate. To advertise it for development, Craig proposed a facades of its buildings. Following the New Town, the Town Council asked Craig to plan the Town its Observatory on Calton hill from 1775 to 1776 and he was then contracted to build it. The new City Observatory on Calton Hill had a gothic tower, now known as Observatory House, which was the only part to be completed before money ran out in 1777. The rest was finally finished in 1792, although this too was replaced, by William Henry Playfair (1790–1857) in 1818. In 1777 Craig was then asked to plan the refurbishment of the New Church St Giles' Cathedral, and entered the competition to plan Leith Ballast Quay. He was initially chosen to build the quay but was replaced by mason, William Jamieson, son of his former master in the incorporation of wrights and masons. He also in this year planned the funerary monument for Lord Provost Alexander Kincaid intended. The New Church work kept Craig busy from 1780 and 1781. In these years, he also prepared plans for the proposed new Bridewell, new Edinburgh College classrooms and oversaw the building of Leith Gun Battery Leith where he had design control over the building elevations but not over technical aspects of the fort. The main gate and guard house remain, although the rest of the fort was demolished in the 1950s. Such public architecture projects were commonly funded by Edinburgh Town Council working in partnership with national government. For examples, the New Church and Leith Gun Battery were partially funded by government grants. Other projects, such as the Inverkeithing Lazaretto in 1771, Royal Botanical Gardens from 1774 to 1782, and May Island Lighthouse in 1786 were all also partially funded through national government and its agencies. Physicians' Hall Politicians aside, another significant source of patronage and friendship Craig enjoyed was from academic professionals including physicians, lawyers, professors to gentlemen living in country houses. The most significant building Craig designed and undertook in the Edinburgh New Town was Hall and Library