from Amaravati. About 79 stones depicted in the Mackenzie drawings are unaccounted for and are not traceable to collections in museums. Java Mackenzie spent two years (1811-1812/13) in Java, during the period of British occupation during the Napoleonic Wars. On 18 November 1812, while in Java, he married Petronella Jacomina Bartels at a local Lutheran Church. Petronella was born in Ceylon and was of Dutch ancestry. In 1814, Stamford Raffles having heard of Mackenzie's work in India, wanted him to survey Java and report on its monuments. Since Mackenzie had then moved back to India, the team was led by H. C. Cornelius (who had accompanied Mackenzie earlier) who was also responsible for the work involved in removing the debris from the buried ruins of Borobodur. His report on the survey of Java included many watercolours illustrating life during that period. These were published in three volumes. The first was titled Antiquities & Costume(s) of Java, 1812-13 and includes drawings and sketches some of which were made use of by Raffles in his History of Java. The second volume bore the title A Collection of Monuments, Images, Sculptures &c. illustrative of The Ancient History, Religion & Institutions of the Island of Java and of the Adjacent Isles: Taken under the immediate Inspection & Direction of Lieutenant Colonel Colin Mackenzie in the course of a Tour & of different Excursions through the Island of Java in the years 1811-1812 & 1813 and included numerous sketches and a few watercolours. The third volume Views, Plans and Maps on the Island of Java carried some pencil drawn maps. Surveyor General of India In 1757, the East India Company under Lord Clive had appointed James Rennell as Surveyor General for Bengal. Colin Mackenzie was appointed Surveyor General of Madras Presidency in 1810 but these posts were abolished in 1815. After his returning to India, in June 1815, he was invested as a Companion of the Bath. He returned to continue surveys of eastern India from the Krishna to Cape Comorin. On 26 May 1815 he was appointed Surveyor General of India with his headquarters at Fort William in Calcutta but he was allowed to stay on in Madras to help reorganize the surveys. He stayed there till May 1817 during which period he worked on planning surveys and examining earlier surveys. He appointed Benjamin Swain Ward (1786-1835) to survey Travancore, Lieutenant Peter Eyre Conner