Hall appears to have been first with this observation, too, for in a lecture he gave at a 1959 Canadian Mathematical Congress conference in Banff on the algebra of symmetric polynomials he noted that the Schubert calculus has combinatorics similar to that of the symmetric polynomials [9].

The most frequently visible of these feathered denizens of the forest is the Tui (Prostemadera novæ Zelandiæ), called 'the parson' by Captain [James] Cook, in consequence of its having two white feathers in the lower part of its neck resembling bands. In colour and shape it is very like the kingfisher, and its melodious notes present great variety.

But anyone who did find the trains was in for a treat: great mahogany wardrobes of carriages with comfortable transverse seats, clocks and cigarette machines.

Not every costumed crime-fighter is necessarily a hero, and not every one with superhuman powers is necessarily a superhero.