Note 11 — Chapter I · HABITS OF WORMS.
Reading edition
I shall have occasion often to refer to M. Perrier’s admirable memoir, ‘Organisation des Lombriciens terrestres’ in ‘Archives de Zoolog. expér.’ tom. iii. 1874, p. 372. C. F. Morren (‘De Lumbrici terrestris Hist. Nat.’ 1829, p. 14) found that worms endured immersion for fifteen to twenty days in summer, but that in winter they died when thus treated.