Plan of the Royal Observatory, Greenwich mb-code 00477241 and Bourlier to the left

and Bourlier to the left of Divo

showing figures and traffic on the street

View of London from the south

Figure 1 shows the eardrum at natural size

Plan of the Royal Observatory, Greenwich mb-code 00477241 and Bourlier to the leftPlan of the old Royal Observatory building (now known as Flamsteed House) designed by Christopher Wren (1632 1723) showing rooms, with a key to their use and various details. These include a reflecting telescope tube of 60 feet in length (centre); a 120 foot deep stairwell for parallax observation (top right); and the star chamber, or octagon room (right). Scale: 1 inches to 30 feet. Plate 1 from Ichnographia speculae Regiae Grenovici exquisite facta