MacCagniCarlo, “The Florentine Clock- and Instrument-Makers of the Della Yolpaia Family”, Des Globusfreund (1970), Nr. 18–20, 92–98, gives a check-list of 14 instruments, 11 signed by Vulparius, 2 unfinished ones attributed to him, and an armillary sphere presumably in Perugia but known only through a 1929 exhibition. One of these, a solar quadrant dating from 1577 in the Museo Archeologico Nazionale dell' Umbria in Perugia, is listed as an astrolabe, apparently erroneously, in BonelliM. L., Catalogo con Aggiornamenti (Florence, 1952) and so copied in GibbsS. L., HendersonJ. A. and de Solla PriceD., A computerized checklist of astrolabes (New Haven, 1973). An earlier version of Maccagni's paper appears in Actes du XIIe Congrès international d'Histoire des Sciences, Paris1968, XA (1971), 65–73.
2.
Two nocturnals are illustrated in colour in Figure 62 of Righini-BonelliM. L., Il Museo di Storia della Scienza a Firenze (Florence, 1968). The first, from 1568, has been issued in a cardboard facsimile by FelliMarcello, L'Orologio Notturno (Florence, 1974).
3.
A real armillary sphere from 1564 is shown in Figure 35 of Righini-Bonelli, op. cit., and described as Item 74 on p. 161. Another is in the Kensington Science Museum, illustrated on their coloured postcard 441.
4.
A sundial signed by Vulparius and another attributed to him are listed as Items 188 and 239 (pp. 175, 178) of Righini-Bonelli, op. cit.
5.
Collection Ant. W. M. Mensing, Amsterdam, Old scientific instruments (1479–1800), catalogued by EngelmannMax (Amsterdam, 1924). The present instrument is rather roughly described as a “grosse Armillarsphäre”.
6.
Laurentius Paulinus Gothus added both Copernican and Tychonic schemes to this copy of Questiones novae in Theoricas novasplanetarum G. Purbachii (Basel, 1573) by Christianus Urstitius or Wursteisen (Houzeau-Lancaster 2661). For a transcription and Swedish translation, see NordenmarkN. V. E., “Laurentius Paulinus Gothus föreläsningar vid Uppsala universitet 1599 över Copernicus hypotes”, in Arkiv för Astronomi, i (1951), nr. 24, 261–300.
7.
The Mercury model, including a sculptured representation from 1527 and an extensive discussion of Peurbach and his precursers, is found in Hartner'sWilly“The Mercury Horoscope of Marcantonio Michel of Venice”, in BeerA. (ed.), Vistas in astronomy, i (1953), 84–138, and reprinted on pp. 440–95 of his Oriens-Occidens (Hildesheim, 1968).
8.
See HorskýZdeněk and ŠkopovaOtilic, Astronomy gnomics, A catalogue of instruments in the National Technical Museum, Prague (Prague, 1968), pp. 138–9 and Plate XXXIX.
9.
Righini-Bonelli, op. cit., Figure 33 and Item 65 on p. 160.
10.
Ibid., Figure 32 and Item 77 on p. 161.
11.
See, for example, the planetaria from 1751 and 1653 in ZinnerErnst, Deutsche und Niederländische Astronomische Instrumente Des 11.–18. Jahrhunderts, Tafeln 4 and 5.
12.
Two instruments in the Deutsches Museum are illustrated in ZinnerErnst, Enstehung und Ausbreitung der Coppernicanischen Lehre (Erlangen, 1943), Abh. 51–52.
13.
I should like to thank Mr and Mrs Roderick S. Webster, curators of the Antique Instrument Collection at the Adler Planetarium, for their continuing interest and assistance with this research, and also the many persons who commented on the first draft of this paper, including the Websters, de Solla PriceDerek, PoulleE., SwerdlowNoel, HowseDerek, BrieuxAlain, and BediniSilvio.