Under Horse Shoe Fall, March 1875, while we were there.

Niagara. Portion of the Horse Shoe Fall from Canada [winter view].

Ice scenery under Horse Shoe Falls, Niagara.

Ice cave, Niagara.

Niagara in winter.

Niagara, edge of Table Rock in winter.

Ice grotto, Niagara Falls.

Ice grotto, Niagara Falls.

Icicles, Niagara Falls.

Table Rock and Horse Shoe Falls, Niagara.

Table Rock and Horse Shoe Falls, Niagara.

Niagara, edge of Table Rock in winter.

Niagara winter. [Interior view of cave, with icicles.]

Terrapin Tower Bridge [in winter], Niagara.

Interior view of cave, winter.

Niagara, the icicles.

Icicles.

Frost work, Mt. Washington, Sept. 4th, 1872.

Frost work on Mt. Wash'n., White Mts., N.H., Aug. 31st, 1869.

Winter view at Glen Ellis Falls, White Mts., N.H.

Winter view at Glen Ellis Falls, White Mountains, N.H.

Winter view at Glen Ellis Falls, White Mts. N.H.

Winter view at Glen Ellis Falls, White Mts. N.H.

Winter view in the Flume, Franconia Mountains.

Winter view in the Flume, Franconia Mts., N.H.

Winter view of Pulpit Rock, Crawford Notch.

Ice work, photographed April 8, 1869, Wilmot, N.H.

Frost work.

Ice Falls, 3.5 ft. high, Mt. Moosilauke, N.H.

Ice.