N 





472 



PRODUCTION OF 



Sect.XVIL I. 1 



^ 



I, Of tuberous and bulbous roots* 

 I. Some tuberous roots, as the turnip, braffica rapa, are immedi- 



F 



ately produced from feeds, but difler from the other plants, which 

 are called annual or biennial, in .this circumftance ; that, as they are 

 generally fowed fo late in the feafon as not to have time to produce 

 flowers and feeds in the fame year, they produce a knobby root, 

 which conlifls of a refervoir of nutritious matter for the future 



flower-ftem, wh 

 and fummer : w 



'e and fl 



common 



111 



fucceeding fp 



o 



ual orraflfes 



a 



and bar 



ley, do not prcvioufly lay up a magazine of nutriment 



but in their joints, which are fvyeet j 



d 



efore th 



roots are 



fed for culinary purpofes, or for provend 



Other tuberous roots are raifed 



th 



but are generally fown alfo fo late in the feafon 



fame manner from feed 



as not to form the 



flower-ftem 



th 



fame 



parfnip, paflinaca fat 



year 



as 



th 



daucus carota 



the 



d the beet, beta 



D 



thefe alfo lay 



up a ftore of mucilaginous and faccharine matter in their roots for the 

 growth of the future flowers. In the beet-root the cryftals of fugar 

 are fornetimes vifible by a miorofcope ; and I was well informed, that 



a labourer in Lincolnfliire made fmall beer from a decodlion of parf- 

 nip ] 



vour 

 the 



which was fpirituous enough, and not of difagreeable fla 



and Mr. Hornby of York, by boihng carrots, and ferm 



juice expreffed from them, produced two hundred gallons of 



proof fpirits from twenty tons of 



Edinb. Tranfaa. Vol. II 



P 



8 



Now as all vinous fpirit has been fugar, th 



IS 



found 



hope that a method may be difcovered of producing and fep 



cr 



fugar from thefe plants of our own climate in fu Ancient quantity for 



demeftic confumpt 



for exportatio 



.< 



Other tuberous roots are propagated from feeds in the fame man- 

 ner.; and though they are fowed early, and produce their flower-ftem 



and feeds in the fame year, yet they form a knobby root, which con- 



fifls 







•1 



