Ayrton, William Edward, 1847-1908 |
Portable voltmeters for measuring alternating potential differences / by W.E. Ayrton and John Perry |
[S.l. : s.n., 189-?] |
Perry, John |
Practical mathematics : summary of six lectures delivered to working men by John Perry at the Museum of Practical Geology, Jermyn Street, February and March, 1899 : with certain exercises supposed to be worked after every lecture |
London : printed for Her Majesty's Stationery Office by Wyman, 1899. |
Ayrton, William Edward, 1847-1908 |
Quadrant electrometers / by W.E. Ayrton, J. Perry and W.E. Sumpner |
London : published for the Royal society by Kegan Paul, Trench, Trübner, 1892. |
Perry, John |
The steam engine and gas and oil engines : a book for the use of students who have time to make experiments and calculations / by John Perry |
London : Macmillan, 1900. |
Ayrton, William Edward, 1847-1908 |
Testing the power and efficiency of trasformers / by W.E. Ayrton and John Perry |
[S.l. : s.n., 1888?] |