Terrestrial globes with equators, poles, eliptics and quadrants Size:L: 70 x 70cm Who' in his adventures when

Who' in his adventures when the long-running series returns to BBC-1 in September

A view of Southwark Bridge

To the left a potman emerges from a tavern ( the Grapes

in the London borough of Barnet

Terrestrial globes with equators, poles, eliptics and quadrants Size:L: 70 x 70cm Who' in his adventures whenPlate 6 figures 1 6 from the paper "Demonstrations of the late Dr. Maskelyne's formulae for finding the longitude and latitude of a celestial object from its right ascension and declination; and for finding its right ascension and declination from its longitude and latitude; the obliquity of the eliptic being given in both cases", by Abram Robertson, Philosophical Transactions of the Royal Society, vol. 106 (1816), pp. 138 148. Original: ink on paper.