Celebrating 1968-78 decade

Our first crossword from September 1968, first issue 

first crossword grid from September 1968
Across                

1, 4.    Useful arrangement of the elements  (8, 5) 
6, 8.    The ____ ____ of chromium in Cr(CO)6 is zero (9,5)
    9.    Ethylene, for example  (alt. sp.) (7)
  10.    Foretell  (7)
  11.    Napoleon is said to have ____ ___ ____, but not where this magazine is published  (3, 3, 8)
    13.  Either σ or π and containing up to two electrons  (7, 8)
    15.  Retailer of medicinal drugs in England  (7)
    17.  Boron instead of carbon in a pastry cream  (7)
    21.  State of matter  (5)
    22.  Complementary process to that in 6 across  (9)
    23.  Not basic to chemists  (5)
    24.  Emu and cello make this – but in reality the reverse is true!  (8)


 Down

     1.   Prefix meaning light  (5)
     2.   Done to a question in class   (5)
     3.   Central African ruminant  (5)
     4.   Anagram of 8 across – not often used nowadays by chemists  (5)
     5.   Vote in Ron to find this subatomic particle  (8)
     7.   Notions  (5)
    12.  Graph axis  (8)
    14.  Madly violent or diseased  (5)
    16.  River in Pakistan  (5)
    18.  Sweetener in France  (5)
    19.  Farewell  (5)
    20.  Closely packed together  (5)
 

Editor’s note: This puzzle was created by Gerry Toogood who still challenges readers with his crostic puzzles today. Be warned, this 50-year old puzzle is much more difficult (in our opinion) than Gerry’s current day crostics. We’ll send a book prize to the person whose name we draw from among those who submit the correct solution to this puzzle on or before January 2, 2019. Email: kjackson@uwaterloo.ca. Post: Chem 13 News, First crossword, Department of Chemistry, University of Waterloo, Waterloo ON  N2L 3G1, Canada.