BIBLIOGRAPHY (No. 18).--_Bonnet, C._, ‘Œuv. Compl.,’ tom vi, p. 191, 1791.--_Bremser_, Atlas, by Leblond, Pl. iv.--_Chaussat_, ‘Comptes Rendus,’ p. 20, 1850.--_Cobbold_, ‘Catalogue of the specimens of Entozoa in the Museum of the Royal College of Surgeons of England,’ Nos. 118-121, London, 1866.--_Idem_, ‘Worms,’ l. c., p. 78.--_Idem_, “On a Cysticercus from the Human Brain,” ‘Brit. Assoc. Rep.,’ 1870.--_Creplin_, ‘Tænia Monstrum, &c.,’ Berlin, 1839.--_Cullingworth, C. J._, “Notes on a remarkable specimen of Tapeworm (_Tænia lophosoma_, Cobbold),” ‘Med. Times and Gaz.,’ Dec., 1873.--_Davaine_, ‘Les Cestoïdes,’ l. c., p. 570.--_Diesing_, ‘Zwanzig Arten von Cephalocotyleen,’ figs. 1 and 2, taf. ii (aus dem xii, Bd. d. denkschr. d. Math.-nat. Cl. d. k. Akad.), Wien, 1856.--_Dujardin_, l. c., p. 619.--_Heller_, l. c., s. 600.--_Küchenmeister_, l. c., Eng. edit., p. 139.--_Leuckart_, l. c., s. 303 and 465.--_Levacher_, ‘Journ. l’Institut,’ p. 329, 1841.--_Pittard, S. R._, Remarks in his article “Symmetry,” Todd’s ‘Cyclop.,’ vol. iv, p. 848, 1849-52, in which he refers to a monstrous Bothriocephalus (_T. lata_) in the Hunterian Museum, old ‘Catalogue of Nat. Hist.,’ pl. iv, p. 50, No. 205; see also my ‘Catalogue,’ l. c., _supra_, No. 167.--_Ransom_, in Reynolds’ ‘System of Medicine.’--_Rudolphi_, ‘Synops.,’ p. 545 and 598-9, with fig. showing the heads of _Cystic. Simiæ_ (biceps), widely apart, 1819.--_Weinland_ (_T. megaloön_), in Zoolog. Garten, Frankf., 1861, s. 118.--_Idem_, ‘Essay,’ l. c., p. 11. _Bothriocephalus latus_, Bremser.--This species, though seldom seen in England, is sometimes brought hither by persons who have been residing for a time in foreign countries. It is indigenous in Ireland, and, though by no means common there, has been called the Irish Tapeworm. As regards its distribution in Europe it is much more prevalent in some districts than in others. On this point Leuckart remarks that “foremost amongst these are the cantons of West Switzerland, with the adjacent French districts. In Geneva, according to Odier, almost a fourth part of all the inhabitants suffer from Bothriocephalus. It is also common in the north-western and northern provinces of Russia, in Sweden, and in Poland. In Holland and Belgium it is likewise found, but, on the whole, not so frequently as in the first-named countries. Our German fatherland also harbours them in some districts, especially in eastern Prussia and Pomerania, and there have appeared cases in other places, as in Rhenish Hesse, Hamburg, and even in Berlin; these being apparently spontaneous instances.”