25 February 1792:"This stone cistern, which is very singular in its form and in its style of decoration, was evidently intended for the purpose of containing water".
4 May 1792:"Had a very pleasant ride to Oosoor, thr Country the whole way was exceedingly beautiful. As a number of Tipoo's People were in the vicinity of the fort, Cap. C. gave us a Seapoy to accompany us...The fort of Ousoor in the Mysore country is built on tolerably even ground, though considerably elevated. The town is surrounded by an almost impenetrable hedge." The capture of the fort of Hosur was of great importance to Cornwallis during his campaign against Tipu Sultan.