Ronalds also supervised the manufacture of his instruments for other observatories around the world (the Radcliffe Observatory under Manuel John Johnson and the Colaba Observatory in India are two examples) and some continued in use until late in the 20th century.
Ronalds also oversaw the production of his instruments for other observatories globally (the Radcliffe Observatory under Manuel John Johnson and the Colaba Observatory in India are two examples) and some remained in use until late in the 20th century.