edit., by Lankester, 1857.--_Le Clerc, D._, ‘A Natural and medicinal History of Worms bred in the bodies of men and other animals’ (_sic_), Browne’s edit., London, 1721.--_Leuckart, R._, ‘Die menschlichen Parasiten, und die von ihren herruhrenden Krankheiten,’ Leipsic und Heidelberg, 1863-1876.--_Redi, F._, ‘De animalculis vivis quæ in corporibus animalium vivorum reperiuntur, observationes;’ Coste’s edition, Amstelædami, 1688.--_Rudolphi, C. A._, ‘Entozoorum sive vermium intestinalium historia naturalis,’ Amsterdam, 1808.--_Idem_, ‘Entozoorum Synopsis,’ Berlin, 1819.--_Van Beneden, P. J._, ‘Animal Parasites and Messmates,’ London, 1876. Several of the above works, while professing to deal with human parasites only, cover more or less of the whole ground of helminthology. Leuckart’s work is invaluable in this respect; and in the matter of literary references of a professional kind Davaine’s treatise is itself well nigh exhaustive. In any ordinary volume it is not possible to give a complete bibliography of parasitism. I make no pretension to do so here; nevertheless, the large number of modern memoirs that I have received from the distinguished writers themselves, enables me to render this part of my book very useful. As second only in importance to the above-mentioned works may be added the following--whether minor treatises, memoirs, monographs, comprehensive articles, or reports of a general or special character, respectively. As such it will be seen that some of them are sufficiently comprehensive, and their mere enumeration will enable the beginner to realise something like a fair estimate of the scope of helminthology. In the case of my own works I have ventured to add references to reviews and notices, because many of the latter contain valuable original suggestions made by the various anonymous writers.