More Geodesy Classics from the 16th & 17th Century

  Gemma Frisius and Willibrord Snellius were two Netherlanders who wrote about the figure of the Earth and introduced improved trigonometric methods to surveying in the 16th Century. Here are some of their works. The dates indicated are either those of the edition of the book's publication or that of the original document.

1533 Frisius, Libellus de locorum describendorum ratione...

1547 Frisius, De principiis astronomiae et cosmographiae

1574 Apiani & Frisius, Cosmographia

1627 Snell, Doctrinae Triangulorum Canonicae

1617 Snell, Eratosthenes Batauus de tarrae ambitus vera quantitate