Al-Turuq al-saniyya fi al-alat al-ruhaniyya

Taqi al-Din ibn Maruf wrote this machine treatise. TDV describes clocks, lifting devices and pumps, listing Ahmad Yusuf al-Hasan's Aleppo1976 edition and Muna Sanjaqdar Sharani's Kuwait2000 publication. We have not read the latter; from the former we read title, preface and selected water-raising material, not the whole work ².

Al-Hasan's volume offers author/engineering studies and a reproduced manuscript, including the fourth water machine's text within his study. He identifies Chester Beatty5232, regarding beginning and ending as evidence of the author's handwriting. That is his editorial assessment, not museum palaeography. A sole-copy statement at publication is no current global library census ³.

The preface reports959AH paired with1551, then a scholar's reading in960AH. We do not independently convert years or turn the reader's date into a pump operating date. The2021 paper summarizes1551 and1552. Text date, reading notice,1976 publication and modern mock-up retain separate roles rather than becoming one event ^{4 5}.

The selected chapter describes the six-cylinder pump, with valves, weights, a projecting shaft and shared outlet. Permitting one tube, preferring three and allowing two does not prohibit every pump with fewer than three. Describing a machine does not establish its construction at a verified historical site ¹.

The editor compares predecessors and Moreland and makes significance/priority claims. The museum attributes his valuation rather than establishing ancestry of every modern engine. The2021 team interprets motion, assumes most dimensions and produces a quarter-scale mock-up. Normalizing a two-arm phrase to a chosen metric length is a modeling decision, not an Ottoman metrological standard verified here ^{6 7}.

We inspected printed47–50, not the Chester Beatty original or every facsimile leaf. The chapter's transcription inside editorial analysis is not the manuscript's36–38 reproduced in the modern paper. Scans and OCR stay outside Git. The modern cam illustration is separate contextual teaching, not an image of any page in this book ^{1 5}.