Heliostat of solar tunnel, Cambridge Observatories

Authors
Jones, Derek H.P. 

Change log
Description
A small photographic print, showing the heliostat of the solar tunnel at Cambridge Observatories, B. E. J. Pagel can just be seen at top L.H. coner.
Date
1957-09
Keywords
heliostats, solar tunnels, observatories, astronomers
Publisher
Original with author.