BA:                 British Association for the Advancement of Science

HEICS:           Honourable East India Company Service

HMSO:           Her Majesty’s Stationery Office

IEEE:              Institute of Electrical and Electronic Engineers (USA).

JCMF:             James Clerk Maxwell Foundation

NLS:               National Library of Scotland

RSE:                Royal Society of Edinburgh

BJC:                Memoirs of the Life of Sir John Clerk, Bt (Clerk & Gray, 1892)

C&G:              The Life of James Clerk Maxwell (Campbell & Garnett, 1882)

CANMORE:    The online catalogue to Scotland’s archaeology, buildings,
         industrial and maritime heritage.  Available at

         http://canmore.org.uk/

         References are given in the notes in the form

         CANMORE: ID [ID number]

DGA:              Dumfries and Galloway Archives. Available at
         http://archives.dumgal.gov.uk/calmview/
         References are given in the notes in the form
         DGA: [accession number].[item number], [title], [date]

DGFHS:         Dumfries and Galloway Family History Society. Available at
         https://dgfhs.org.uk/

DNB00:          Dictionary of National Biography, 1885−1900, 63 vols.
         London: Smith Elder & Co. Available at
         https://en.wikipedia.org/wiki/Dictionary_of_National_Biography

DNB12:          Dictionary of National Biography, Supplement, 1912. London:
         Smith Elder & Co. Available as per DNB00

DSA:               Dictionary of Scottish Architects, Available at
         https://https://www.scottisharchitects.org.uk/architect_list.php

EPD:               Edinburgh Postal Directories 1773‒1912. Available at
         https://digital.nls.uk/directories/browse/archive/83686240

NAK:               National Archives, Kew. Available at
         https://www.nationalarchives.gov.uk/
         References are given in the notes in the form
         NAK: [accession number], [title], [date]

NMS:              National Museum of Scotland

         References are given in the notes in the form
         NMS: [accession number], [title], [date]

NRS:               National Records of Scotland. Available at
         https://catalogue.nrscotland.gov.uk/nrsonlinecatalogue/search.aspx
         References are given in the notes in the form
         NRS: [accession number].[item number], [title], [date]

ODNB:           Oxford Dictionary of National Biography. Available at
         https://www.oxforddnb.com/
         (UK library card or subscription may be required)

OS:                  Ordnance Survey Maps. Available at
         https://explore.osmaps.com/

RCAHMS:       Now obsolete. See instead CANMORE

RPS:                Records of the Scottish Parliament to 1707. Available at
         https://www.rps.ac.uk/
         References are given in the notes in the form
         RPS: [reference number]

RS:                  Registers of Scotland (property records).
         https://www.ros.gov.uk/our-registers
         References are given in the notes in the form
         RS: [reference numbers], [record type], [date]

SC:                 Scottish Censuses. Available as per Scotland’s People (SP)

SCAN:            Scottish Archive Network online catalogue. Available at
         https://www.scan.org.uk/aboutus/indexonline.htm

SOPR:           Scottish Old Parish Records (Births, Deaths, Marriages).
         Available as per Scotland’s People (SP).
         References are given in in the notes in the form
         SOPR: [event], [reference number], [parish/county]

SP:                 Scotland’s People. Available at
         www.scotlandspeople.gov.uk/  
         Registration is required and charges may apply

SRO:               Scottish Record Office. See NRS

SRS:                Scottish Record Society. An index, and online copies of the
         ‘Old Series’ publications, are available at
         https://www.scottishrecordsociety.org.uk/publications/old-series/

SSR:              Scottish Statutory Records (Births, Deaths, Marriages since 1855).
         Available as per Scotland’s People (SP)
         References are given in the notes in the form
         SSR: [event], [reference number], [parish/county]

SWT:              Scottish Wills and Testaments. Available as per SP above.
         References are given in in the notes in the form
         SWT: [person], [reference number], [court], [date]

WDN1 and  WDN2:    The Scientific Papers of James Clerk Maxwell
         (Niven, 1890, 2 vols.)

         Volume 1 is available at
         https://archive.org/details/scientificpapers01maxw
         while volume 2 is to be found at
         https://archive.org/details/scientificpapers02maxwuoft