1,500 butterflies including 750 type specimens. In 1932, the collection numbered over 500,000 specimens. Shortly after Joicey's death in 1932 the Hill Museum was closed and the property sold by his mother's executors. Joicey's obituary in The Entomologist stated that, The closing of the Hill Museum and the disbanding of its staff are events which will have serious repercussions throughout the ranks of lepidopterists in all parts of the world, and will definitely retard the advance of this science. In a comparatively short space of time Mr Joicey accomplished much for his favourite study. Legacy Joicey's Hill Museum produced more than 190 research articles which were published in a range of scientific journals. In 1934, the Natural History Museum received more than 300,000 specimens as part of the Joicey Bequest. Together with the Oberthür and Rothschild collections, the Joicey collection contributed significantly to the quality and number of the Lepidoptera collection held by the Natural History Museum, London. A report in Nature stated that, During his life-time, the late J. J. Joicey probably did more to stimulate the study of butterflies and moths, especially those of Africa, than any other private individual in Great Britain. Works Joicey and Talbot (partial list) New Species of Heterocera from Dutch New Guinea. Annals and Magazine of Natural History (Eighth series) 15 (87): 295–301, pl. XII (1915) New Lepidoptera from the Dutch New Guinea (with A. Noakes). Transactions of the Entomological Society of London 63 (3,4): 361–386, pls LV–LXII (1916) New Lepidoptera from the Schouten Islands. Transactions of the Entomological Society of London 64 (1): 65–83, pls 3–6 (1916) New Heterocera from Dutch New Guinea. Annals and Magazine of Natural History (Eighth series) 20 (115): 50–87, pls 1–4 (1917) New Lepidoptera from Waigeu, Dutch New Guinea and Biak. Annals and Magazine of Natural History (Eighth series) 20 (117): 216–229 (1917) New South-American Rhopalocera. Proceedings of the Zoological Society of London 1917: 259–264, pl I (1918) New South-American Arctiidae. Proceedings of the Zoological Society of London 1917: 265–270, pl I (1918) New butterflies from Africa and the east. Proceedings of the Zoological Society of London 1917: 271–272 (1918) A Gynandromorph of Papilio lycophron Hbn. Proceedings of the Zoological Society of London 1917: 273, pl II (1918) Three Aberrations of Lepidoptera. Proceedings of the Zoological Society of London 1917: 275–276, pl I (1918) New forms of Indo-Australian butterflies. Bulletin of the Hill Museum 1 (3): 565–569