• 2009.10.24 It is with the deepest regret that we have to report the sad passing of Donald peacefully on the afternoon of 21st October. Our thoughts and sympathies are very much with Ann and son Ewen at this devastating time of loss. R.I.P. Dr. Donald B. McIntyre 1923 – 2009
  • 2009.07.22 Sadly, Donald has recently become severely disabled by Parkinson’s Disease and Vascular Dementia. He enjoys receiving greetings but can no longer undertake the kind of academic work that has given him so much pleasure throughout a long and fruitful career.
  • 2005.02.12 Link to Adobe Reader 7 provided for Tim White's paper on apatite.
  • 2005.02.11 With permission, two paragraphs from Tim White's paper (2005) on apatite are included for a current evaluation of Beevers & McIntyre (1946).
  • 2005.02.06 Correct links to Home Page from j_htm and j_story.
  • 2005.02.06 Correct an error in link to IBM Systems Journal (1991) "Hieroglyphics ..." paper.
  • 2005.02.06 Update Menu dates
  • 2005.02.04 Reduce the structure "j_f/ibm_sysj/sysj553_r.pdf ...etc" to "j_f/sysj553_r.pdf ...etc".
  • 2005.02.04 "A Tribute to Ken Iverson" has been added to the APL-J Language page. Display by clicking on the picture of Ken Iverson. Requires Adobe Reader.
  • 2005.01.26 A better source was used for the text of "Mastering J".
  • 2005.01.26 Adobe Reader 7 should be used to read pdf files. The relevant URL is given.
  • 2004.09.21 Because Mozilla Firefox browser doesn't open the Apatite images, Home Page advises users to use MS Internet Explorer browser.
  • 2003.11.18 Spacing in Unordered Lists now controlled by "class".
  • 2003.11.16 h5 font-size changed from "medium" to "small".
  • 2003.11.13 E-mail address concealed. Blank line inserted at top of Menu bar. Known typos corrected.
  • 2003.11.08 Top bar & text smaller. E-mail link restored.
  • 2003.11.05 "Impact Metamorphism at Clearwater Lake, Quebec" added to Geology Menu.
  • 2003.11.02 Menu is changed frorm J-Language to APl-J Language.
  • 2003.11.02 The "Hieroglyphics to APL paper" (IBM Systems Journal, 1991) is now supported by a letter from John C. McPherson. A brief note about John McPherson is included.
  • 2003.10.10 The list of Updates now has the latest entry on top.
  • 2003.10.10 The entry “J Language” in the menu bar. If a visitor reduces the width of the menu bar – either by failing to use a full-screen display, or by dragging the boundary towards the left – the browser will put “J” and “Language” on separate lines, and the text will jump when the cursor moves across this option. The effect has been reduced by joining “J” and “Language” with a hyphen. The best practice is to use a full-screen display.
  • 2003.10.07 J Language includes the start of a new section: "The Story of APL & J". -- March & Wolff‘s Calculus (1sr Edition, 1917, p.43, 57, 58) on J‘s Fork construction for sum, product, & quotient of two functions
  • 2003.10.02 Space on the server increased from 30MB to 100MB and access restored to individual pages of the IBM Systems Journal paper (1991).
  • 2003.10.01 Number of links to papers on J (1991-1996) increased to six. As a result website size exceeds available space on the server. The feature permitting access to individual pages of the IBM Systems Journal paper (1991) is therefore withdrawn.
  • 2003.09.30 Four genealogical trees added to "Hutton’s Edinburgh", Earth Science History
  • 2003.09.29 Thanks to Lynda Chan: In the style sheet remove "table { padding: 15; }" and add "td { padding-left: 15px; padding-right: 15px; }"
  • 2003.09.28 Minor changes in credits and style sheet
  • 2003.09.28 Information about magnification of pdf files added
  • 2003.09.27 The paper Perils of Subtraction, (Vector Vol.11, No.4, 1995)has been added as a pdf file
  • 2003.09.27 The paper Mastering J – from APL91 – was scanned by Roger Hui for inclusion in the J Language section. Scanning was difficult because the paper is available only in the bound Proceedings volume
  • 2003.09.27 Some further typos have been corrrected
  • 2003.09.22 Thanks to Jeff Wilkison who advised that right-click on a link followed by select "Save Target As" is all that is necessary to download a file without opening it!
  • 2003.09.22 Because Adobe Reader provides a Save option, downloading a Zip file is not needed. (Because Adobe Acrobat 6 had already compressed the file, Zip made little improvement.)
  • 2003.09.19 Several typos have been corrected
  • 2003.09.19 Option to download individual pages of the 1991 IBM Systems Journal paper has been restored in a more compact form
  • 2003.09.18 Option added to download a zip file of the 1991 IBM Systems Journal paper
  • 2003.09.05 Six family trees appended to "Hutton's Edinburgh"
  • 2003.09.04 HTML coded characters inserted in stones_text.htm
  • 2003.09.04 Further instances of \ for / have been detected and changed. This error is overlooked by Windows but not by Linux! It is believed that all links are now correct.
  • 2003.09.04 The formatting of the last part of Vitae has been improved
  • 2003.09.04 Users are advised to use Adobe Reader 6.0 when downloading pages from my paper in IBM Systems Journal, 1991
  • 2003.09.02 To the quotation in bridge.htm [sic] has been added after "it's"
  • 2003.09.02 The section on J language has been improved. My paper in IBM Systems Journal 1991 has been made available both as a single pdf file (4MB) and as a set of 29 pdf files each being a single page of the original document
  • 2003.08.31 Some links failed because -- unlike MS Windows -- the Linux operating system on the server distinguishes between upper and lower case characters. These incompatabilities have been corrected
  • 2003.08.31 Other sections from my original website have been incorporated in this new website. These sections are being revised in accordance with the new CSE Validator and the external Style Sheet
  • 2003.08.31 Most html files have been rewritten and passed by CSE HTML Validator Professional v6.0100. A few files still require to be tested
  • 2003.08.31 A section on fluorine in teeth has been added. Tnis includes the Beevers-McIntyre 1946 paper on the atomic structure of fluorapatite
  • 2003.08.31 All html files now use a single external Cascading Style Sheet.