Amongst all the wonderful ways in which Nature does her daily work, none is more amazing than that in which she spreads the seeds of her wild plants, trees, and flowers, so that they propagate themselves in their natural surroundings. There are seeds, like those of the sycamore and the dandelion carried on the winds; there are seeds that animals carry with them on their coats; there are seeds carried by birds, and seeds borne on the surface of streams. All these, and some even more marvellous methods of seed-distribution, will be described in Mr. Parker's talk this afternoon.