Size | Height 302 mm, width 200 mm. | Watermark | Crossbow, form 2. Drake's identification: Watermark type 17. Drake's description: Large crossbow 57 X 36mm. Date of earliest letter with this watermark is February 1609. | Comments | Written by Galileo; contains drawing, short text, table, calculations. Relation to the Discorsi: work on 3/14-pr-07-dialog2. |
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| | Folio 132 v (final text) | 1 | Detur ih. dabitur io per ablationem [quadrati] ih ex [quadrat]o ho. Deinde, ablata ih ex bc, datur lc, cuius [quadratum], ablatum ex [quadrat]o ch dato, dat [quadratum] lh et ipsam lh, idest bi: ergo dabitur tota bo. | C01 | lc 12 1000 - 144 = 9856 sqrt 9856 = 99 55/199 | C02 | 40000 - 3600 = 36400 sqrt 36400 = 190 300/380 | C03 | 180 : 4 = 45 | C04 | bc | 60 | gd cd | 200 | cg | 200 | bg | 190 3/4 | gf bf | 95 3/8 | fd | 30 |
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