[355] Rosendahl 1907.

[356] Meyer 1902.

[357] [See p. 52.]

[358] Nylander 1858.

[359] Hue 1898.

[360] Rosendahl 1907.

[361] Darbishire 1912.

[362] Porter 1919.

[363] Darbishire 1897.

[364] Schwendener 1860.