Sketch -of the Hiftory of Sugar. 30% 
Cyprus, Rhodes, Amorea, Marta, Sicily, and other 
places belonging to the Chriftians. 
Hugo Faleandus, ** an author who wrote about 
the time of the Emperor Frederic Barbaroffa, fpeaks 
of fugar being in his time produced in great quan- 
tity in Sicily. Jt appears to have been ufed iz two 
ftates; one wherein the juice was boiled down to 
the confiftence of honey, and another where it ‘was 
boiled farther, fo as to form a folid body of fugar. 
The foregoing are all the paffages that have oc- 
curred to my reading on this fubjectt. ‘They are 
but few and inconfiderable, but may fave trouble 
to others, who are willing to make a deeper enquiry 
into the hiftory of this fubftance, 
Fan. 24, 1790, | 
* Jn prxfatione ad Libr, de Calamitatibus Sicilix. 
#1170. 
<a 
The following Paflage taken from the Viridarium Fran. 
cifei Mendoze, Sacra & Profane Eruditionis. Colonize 
Agrippinz, 1633, feems to point out, though rather ob- 
{curely, the conftruction and principles of Balloons, 
“ Vas xreum, plenum aere, aliter demergendum, in 
fumma aqua fuftentatur, cum ea fit naturaliter multo gra- 
vius ; ergo navis lignea, aut cujuscunque alterius materie in 
furma aeris fuperficie conftituta, et elementari igne repleta, 
fupra aerem fuftinebitur, nec prius in ipfo aere fubmergetur, 
quam navigii gravitas fuperet levitatem ignis, quo plenum 
eft.” 
Problema XLVII, Utrum aer parte aliqud fit navigadilis, 
W. F. 
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