Crossword No16
ACROSS
1 In biology, a population that is less widespread than in the past (6)
5 Birth city of physicists John von Neumann, Eugene Wigner and Edward Teller (8)
9 Process once crucial in the production of high-grade iron (8)
10 Twofold; of communication, two-way; of printing, double-sided (6)
11 The generic name for polymethyl methacrylate (10)
12 A number that when raised to the power n yields x (4)
13 Boring structure (5,3)
16 Asian antelope also known as the blue bull (6)
17 Planet discovered by Sir William Herschel in 1781 (6)
19 (& 24…
