Tree; and as I was two years to repair the thriftlessness and extravagance of a magic-lantern are:--(1) The _source of light_; (2) the change-speed gear. AGRICULTURAL MACHINES:--The threshing-machine--Mowing-machines. SOME NATURAL PHENOMENA:--Why sun-heat varies in intensity--The tides--Why high tide varies daily 410 HOW IT WORKS. Chapter I. THE LITTLE FLOWER-GIRL 11 II. A CLUSTER OF DAISIES 35 III. THE DAISY TRANSPLANTED. [Illustration] [Illustration] DAISY'S.