The Arequipa observatory was at
http://binged.it/Wt4FrE
See also
http://natagri.ufs.ac.za/dl/userfile...1/1087_eng.pdf
for a history of the Boyden Observatory at Arequipa, Peru and Bloemfontein, South Africa.
The Bloemfontein, South Africa observatory is at Maselspoort
http://binged.it/SHM5Y7