- Annals of the College from 1555 to 1572
- De Mendeti Methodo (Basel, 1554; London, 1556, Svo)
- Account of the Sweating Sickness in England (De Ephemera Britannica), London, 1556, 1721.
- History of the University of Cambridge (Historia Cantabrigiensis Academiae), London, 1568, 8vo; 1574, 4to.
- De Thermis Britannicis; but it is doubtful whether this work was ever printed
- Of Some Rare Plants and Animals (London, 1570)
- Of Englishe Dogges (De Canibus Britannicis), 1570, 1729.
- De Pronunciatione Graecae et Latinae Linguae (London, 1574)
- De Libris propriis (London, 1570).
Works about CaiusEdit
- "John Caius," in Catholic Encyclopedia, (ed.) by Charles G. Herbermann and others, New York: The Encyclopaedia Press (1913)
- "Caius, John (1510-1573)," in Dictionary of National Biography, 1885-1900, London: Smith, Elder, & Co. (1885–1900) in 63 vols.
- "Caius, John," in Encyclopædia Britannica (11th ed., 1911)
Some or all works by this author were published before January 1, 1928, and are in the public domain worldwide because the author died at least 100 years ago. Translations or editions published later may be copyrighted. Posthumous works may be copyrighted based on how long they have been published in certain countries and areas.