Concerning such mechanism [electronic resource] : an accessible 'translation' of the horological content of John Harrison's 1775 manuscript.
Heskin, David.
[Shepshed?] : Soptera Publications,
2011.
Title from disc label.
System requirements: IBM compatible PC; Windows 98 or later; Adobe Reader; MS Word.
Available for use on a standalone workstation within the library for single users. Disc may require installation.