4o8 On the Preparation of Sugar 



rated. From this experiment it appears, that a bufliel of 

 thefe beets, witliout any peculiar care being employed in 

 the cultivation of them, will give 5' pounds of brown raw 

 fugar, and x^ pound of not ill-taficd fvrup, which, if not 

 nfed as fyrup, might be ufcd with advantage for diftilling 

 fpirits. I am now employed in refmino; mv raw fugar, and 

 in determining how much fine fugar and how much fyrup 

 will be productd from it. 



10. Experiments ivith the red Beet, the Beta rubra. Beta 

 civ:la rubra of Jacquin, to obtain Sugar from it. 

 That it is pofiible to obtain fugar alfo from the common 

 red beets has been already proved by Margraf. 1 fubjefted 

 them, therefore, to the like treatment as the preceding kinds, 

 and obtained from a bufliel of red beets 6] pounds of fyrup 

 of a not unpleafaut tafte, but very inferior to that obtained 

 from the white beet and the beta vulgaris altifjima. I did 

 not try to obtain fugar from it. Margraf, from a pound of 

 frefli red beets, obtained eight ounces of dry fugar, and from 

 thirty-two ounces of dry roots, about two and a half drams. 



II. Experijne?its ivith Carrots, Daucus carotta Linn, 

 When carrots are cut in flices and boiled with water, you 

 obtain a fweet liquor, which by evaporation produces a 

 fweetidi juice, which the country-people either fprcad upon 

 bread or ufe to fwcetcn different articles of food. Having 

 freed a bud'.cl of carrots from the thin outer rind, I rafped 

 ihem and exprelTcd the juice. This liquor was then boiled, 

 clarified with the white of an egg, an 1 iiifpiflTatcd to the con- 

 fidence of fyrup. I obtained fix pounJs and aquarterof a not 

 unpleafaut fyrup, much infcri-zr, however, to that obtained 

 from the white beet and the beta vulgaris alt'fjima. I found 

 it impofiible to feparatc real fugar from it : refStified fpirit of 

 wine extrafled from it a fubflauce which had a great fimi- 

 larity to manna. 



1%. Experiments with common Turnips, Erafiica rapa, ia 

 ohlain Sugar from them. 

 I took twelve turnips and rafped them, after having freed 

 them from the tops and outer rind. The rafped matter had 



an 



