- FondsMerry - Papers of Douglas Cooper Merry
- SeriesBox 1 - Notes on mathematics and electricity
- Item1 - 'Notes on mathematics, statics & dynamics required by officers proceeding to Cambridge University'
- Item2 - 'Maths notes'
- Item3 - 'Electrical-mechanical analogue'
- Item4 - 'Electricity I. E & M. Part I'