[35b] Schmulewitsch, ‘Action des Sucs digestifs sur la Cellulose.’ Bull. de l’Acad. Imp. de St. Pétersbourg, tom. xxv. p. 549. 1879.
[40] Claparède doubts whether saliva is secreted by worms: see ‘Zeitschrift für wissenschaft. Zoologie,’ B. xix. 1869, p. 601.
[41a] Perrier, ‘Archives de Zoolog. expér.’ July, 1874, pp. 416, 419.
[41b] ‘Zeitschrift für wissenschaft. Zoologie,’ B. xix, 1869, pp. 603–606.
[46] De Vries, ‘Landwirth. Jahrbücher,’ 1881, p. 77.
[49] M. Foster, ‘A Text-Book of Physiology,’ 2nd edit. 1878, p. 243.
[50] M. Foster, ut sup. p. 200.
[53] Claparède remarks (‘Zeitschrift für wisseuschaft. Zoolog.’ B. 19, 1869, p. 602) that the pharynx appears from its structure to be adapted for suction.
[58] An account of her observations is given in the ‘Gardeners’ Chronicle,’ March 28th, 1868, p. 324.
[59a] London’s ‘Gard. Mag.’ xvii. p. 216, as quoted in the ‘Catalogue of the British Museum Worms,’ 1865, p. 327.