| RefNo | EC/1892/17 |
| Previous numbers | Cert XI, 227 |
| Level | Item |
| Title | Joly, John: certificate of election to the Royal Society |
| Citation | Assistant to the Professor of Civil Engineering in the University of Dublin. Has discovered (a) by direct measurement a variation of specific heat constant volume of various gases with density; (b) Iolite in the Granites of Leinster; (c) a heterogeneous Beryl Felspar mineral; (d) the reversal of 'Oldhamia antiqua' and 'radiata' impressions in the Slates of Bray Head. Is the author, amongst other papers, of the following: - On the direct experimental determination of Specific Heats of Gases at Constant Volume' (Proc Roy Soc, vol xlviii in abstract, recommended for Phil Trans); 'On the Method of Condensation in Calorimetry' (Proc Roy Soc, vols xlv and xlvii); 'On the Specific Heats of Minerals' (ibid, vol xli); 'Observations of Spark Discharge over Surfaces of Dielectrics' (ibid, vol xlvii); 'On the Volcanic Ash of Krakatoa' (Proc Roy Dubl Soc, vol iv). Has invented (a) the Method of Steam Calorimetry (Trans and Proc Roy Soc,as above); (b) a Diffusion Photometer (Phil Mag, July, 1888); (c) a Hydrostatic Balance (ibid, Sept 1888); (d) an Instrument for measuring Melting and Boiling Points of Solids, &c, up to a very high temperature (Nature, vol xxxiii, and Industries, vol vi); (e) a Method of measuring the Density of a Gas (Phil Mag, vol xxx); (f) a Method of reading Distant Meteorological Instruments (Proc Roy Dubl Soc, vol iv); (g) a Method of measuring Specific Gravities of Minute Quantities of Porous and other Solids (Phil Mag, July, 1888). |
| Proposers | From Personal Knowledge: Geo Salmon; Robert S Ball; Saml Haughton; Benj Williamson; J Emerson Reynolds; W J Sollas; Geo Fras Fitzgerald; Edward Hull; G Johnstone Stoney; Howard Grubb; W N Hartley; V Ball; B B Stoney; W Ramsay |
| Extent | 1 sheet |
| AccessStatus | Open |
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Fellows associated with this archive
| Code | PersonName | Dates |
| NA824 | Joly; John (1857 - 1933); geologist and physicist | 1857 - 1933 |