Philip Adams, the surveyor-general who initially took cost of the venture after Smalley’s dying in 1870, found there was no means of precisely calculating this growth and contraction of the measuring bars. To repair this, Adams ordered the usual forged iron measuring bar (first despatched to the colony in 1859) that was housed within the observatory at Sydney be dropped at Lake George. This enabled a each day comparability between the usual bar and the measuring bars. Additional, to make sure the usual bar itself did not contract or increase, an onsite underground vault, with a secure temperature and humidity, was constructed to retailer it in. Nobody is aware of what occurred to the vault. Maybe it is nonetheless there, hidden beneath blackberry bushes.
