Manchester, John Rylands Library MS. Crawford German 8. ii + 14 + vi. Vellum and paper. 216x180mm. 15th Century. Vera sciencia alhimie in figuris... id est Warhaftige erkentnisz der hochsten erzeney. 1. f2-6v [Prologue in German rhyme "Dis gewalt peynigt mich nackendes weib/ Wann unselig was mein erster leib..." [With series of coloured drawings numbered 1-9.] 2. f7-11 [Prologue in German verse "Platonis tochter rüft und scheit also/ Beware mich, so bewar ich dich".] [With series of coloured drawings numbered 10-17.]