YESTERDAY EVENING, WE took a stroll in Kensington Gardens when the temperature was beginning to drop. The sun was low in the sky. This caused some parts of trees to be shadowed by neighbouring trees so that lovely patterns of light appeared on them. One any particular tree, part of its foliage was brightly coloured because the rays of the sun could reach it, and other parts appeared dark green because the sun could not reach them. All this is obvious when you see it described in words, but wonderful when you see it in life.

PS: It is light effects such as these that make it difficult for artists to paint trees