Editing Perth Observatory (section)

=====Curlewis and the WA border=====
{{See also|Western Australia border}}

In 1920 and 1921 Curlewis was involved with the [[South Australian Government Astronomer|Government Astronomer of South Australia]], Dodwell, in determinations to fix positions for marking of the [[Western Australia border|West Australian border]] on the ground with the [[South Australian borders|South Australian border]] at [[Deakin, Western Australia]]. In 1921 the same group from the Deakin determinations travelled by the State Ship, MV ''Bambra'' to Wyndham, where they were guided by [[Michael Durack|M.P. Durack]] to a point on Rosewood station near [[Argyle Downs]] close to the [[129th meridian east]] [[longitude]] (<abbr title="129th meridian east longitude">129° east</abbr>). They used the relatively new technology of the day, wireless radio time signals, and other methods to fix a position for the [[Northern Territory borders|Northern Territory border]] with Western Australia.<ref name="notstraight" />

These early determinations led to the 1968 agreement for the formation of [[Surveyor Generals Corner]].

The WA border is not straight ''(see [[Western Australia border]])''; at the [[26th parallel south]] (<abbr title="26th parallel south latitude">26° south</abbr>) there is an approximately {{convert|127|m|adj=on}} "sideways" section of the <abbr title="Western Australian">WA</abbr>/<abbr title="Northern Territory">NT</abbr> border, which runs east–west.<ref name="notstraight" />