• Reference
    Z150/1/31
  • Title
    Problemata necssaria ad Calculum Eclipseos Solaris perficiendum. A method for calculating the time and duration of Eclipses, manuscript in latin, gives examples in two years 1641 and 1701
  • Date free text
    Undated [C18th]
  • Production date
    From: 1701 To: 1800
  • Level of description
    item