OPERATION XI. To know where they are Rising, where they are at Dinner, where at Supper, and where going to Bed all over the World.
THis Operation depends on this Maxim, That it is the same Hour with all People that have the same Longitude, that is to say, that live under the same Semi-hour Circle, or Semi-Meridian, therefore as the drawing of your String from the* 1.1 Pole, over half the illuminated part of the Globe, i. e. over the Sun's present Place, shows you that 'tis Noon or Dinner-time with all that inhabit under the said String, so the drawing it over any Place distant 6 hours Westward (i. e. over so many* 1.2 hours towards the left hand from the Vertical point) shows where 'tis then all the World over 6 in the Morning, or Tunc to Rise; whereas had you drawn it six hours Eastward (i. e. to∣wards* 1.3 your Right-hand,) it would have shewn you where 'twas six in the Evening or Supper-time, and four hours further (i. e.