Spring is here. For sheer delight it may be difficult to beat a sitting position on a grassy slope under a shady tree, with your back against the trunk and legs stretched out on the soft grass, but it can be done; and the practicing of tumbling in the spring on a spot like the above-mentioned is the delightful pastime that does the trick. Try it some nice, warm, spring day. Go out in the country or to a city park and find a shady tree which stands on level or on very slightly-sloping ground. Take off your hat and coat and start tumbling, or try to, as the case may be, using the soft grass and ground as a mat.