Authorised form of nameApjohn; James (1796 - 1886)
Dates1796 - 1886
Place of birthLimerick
Date of birth01 September 1796
Place of deathCounty Dublin
Date of death02 June 1886
Research fieldChemistry
Tipperary Grammar School; Trinity College, Dublin (1813) BA (1817) BM (1821) MD (1837)
Professor of Chemistry, Royal Cork Institution (1826-1828); Professor of Chemistry, Royal College of Surgeons (1828-1850); Professor of Applied Chemistry, Trinity College, Dublin (1841-1881); Professor Mineralogy, Trinity College, Dublin (1845-1881); University Professor of Chemistry, Trinity College, Dublin (1850 - 1875); awarded the Cunningham Gold Medal of the Royal Irish Academy for essay 'A new method of investigating gaseous bodies' (1837); worked on determination of the dew point using the wet bulb hygrometer, suggesting a formula that became known as Apjohn's formula; analysed and described a new mineral from Grahamstown, South Africa which was named Apjohnite
FCS 1861; MRIA Vice-President; Fellow of the King's and Queen's College of Physicians
Membership categoryFellow
Date of election02/06/1853
RelationshipsSon of Thomas Apjohn, tax collector
Bulloch's Roll; Irish Innovators
Proc Roy Soc 1886 vol 41 pp i-ii signed by J E R
Virtual International Authority File
Royal Society codeNA2776
Archives associated with this Fellow
Reference numberTitleDate
MM/11/141Letter from James Apjohn, Knock1 August 1839
IM/Maull/000116Apjohn, Jamesnd
EC/1853/01Apjohn, James: certificate of election to the Royal Society
MC/5/122Letter from James Apjohn, 21 Baggot Street, [Dublin, Ireland], to the Royal Society9 November 1853
MC/5Volume 5 of miscellaneous correspondence regarding business matters, sent to the Royal Society1851-1858
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