coming larger and more complex by the addition of branches at the angles. The triangular forms, such as Figs. 7 and 9, are less common than the others figured, and occur usually in the greater storms. Fig. 17 shows a very unique composite crystal, which, beginning in the higher clouds as a simple hexagon, seen in the center, received the peculiar additions which are well shown in the figure. Fig. 11 is exceedingly unusual. It appears to be a composite crystal formed from two, each of which has been in some way broken apart, and the portions shown were so brought in contact as to unite and form a single crystal of very nearly the original form of each of its parts.
The above are some of the more important of the many interesting results which have come from our study of snow crystals. They are given not merely as of value in themselves, but also in the hope that others may be stimulated to undertake similar investigations, and that thus our knowledge of these charming objects may be greatly increased. After what has already been said, it should not be necessary to add that any one who engages in the study of snow crystals will speedily find his task both absorbing and delightful. There is no surer road to fairyland than that which leads to the observation of snow forms. To such a student the winter storm is no longer a gloomy phenomenon to be dreaded. Even a blizzard becomes a source of keenest enjoyment and satisfaction, as it brings to him, from the dark, surging ocean of clouds, forms that thrill his eager soul with pleasure.
