120. Branchy trigonal crystal
121. An uncommon type
Photograph [No. 136] shows how individual ice flowers hamper each other in growth; that the points reaching out into clear water grow and draw to themselves with greater freedom the water molecules, while the points intruded upon or crowded out by other crystals or flowers, cease to grow, and do not interfere with the growth of others.
Nos. [137] and [138] are still other forms of ice-growth, the needle-like, lance-like form which we may frequently observe pushing out from the banks of a small pond or brook. These needle-like forms of ice eventually acquire branches about their entire radius, which grow and merge, with other ice flowers of different types, into solid ice upon the surface of the water.
[No. 139] shows this type of ice-crystal completed. These ice-crystals form and rise like magic in early winter, especially upon and around the new ice upon the edges of small brooks, and streams.
“Sometimes the roof no fretwork knew
But silvery mosses that downward grew;
Sometimes it was carved in sharp relief
With quaint arabesques of ice-fern leaf.”