1038. To study the natural classes and orders. Begin in spring with the Ranunculaceï¾µ, and examine all the different flowers you can find belonging to that order, most of which flower in early spring; and then go on with the plants belonging to the other orders as you can obtain them, carefully noticing the botanical differences. When you are acquainted with the characteristics and general appearance of several orders, amuse yourself by going into a garden and guessing to which natural order every flower you see belongs; and afterwards ascertain whether you have been right.