When I was at school, more than 60 years ago, this essay by JBS Haldane was in one of our schoolbooks. I see that it is now sufficiently famous to be covered in Wikipedia. (I must quickly reject any inference that
I think everything, or even most things, covered in Wikipedia are appropriately described as famous.)
From long experience I know that some mystery surrounds the question when a graphic qualifies as the ‘right size’ to enable reproduction on this chatline. No matter, that is simply a test of one’s perseverance. Many
offerings have been regarded as of insufficient importance to justify even a second attempt.
With respect to the below, this is a fourth attempt. That is not an indication of importance, given the trivial nature of the graphic. I was simply testing the properties of the current filter, which do vary from time
to time. Now that I have (possibly) inflicted it on you, my question is whether anyone has thoughts on the subject matter.