[335] Fünfstück 1899.

[336] Darbishire 1897.

[337] Frank 1876.

[338] Bornet 1873, p. 81.

[339] Lindau 1895.

[340] Bitter 1899.

[341] [See p. 83.]

[342] Friedrich 1906.

[343] [See p. 76.]

[344] [See p. 126.]