Published Onsigbare Geschapene Waarheden (Invisible Creation Truths), Letters 32, 33, 39

Date: 
January 1, 1684

Schierbeek had one with three, Letters 32, 33, and 39. His had the dedication, dated January 1, 1684, and the three letters unnumbered and separately paginated: vii + 8 + 32 + 19.