394 



On the Composition of the 



h. Carrots grown in 1852. 



Water. — 1. Fresh carrots were found to contain 88*567 per 

 cent, of water. 



2. In a second experiment 100 parts of fresh carrots lost 

 88*867 per cent, of water. On an average the fresh carrots of 

 1852 groAVth contained 88*717 per cent, of water. 



Ash. — 1. In the first determination the percentage of ash in 

 fresh carrots was found to amount to 0*697 per cent. The dried 

 carrot accordingly contained 6 10 per cent, of ash. 



2. In a second determination the percentage of ash in carrots 

 in their natural state amounted to 0*706 per cent. In the dried 

 state, according to this determination, carrots contain 6*26 per 

 cent, of ash. 



Protein Compounds. — 15*79 grains of carrots, dried at 212*^ F., 

 burned with soda-lime, gave 2*20 grains of chloride of platinum 

 and ammonium. 100 parts of dried substance thus contain 

 0*875 per cent, of nitrogen, equal to 5*462 of protein compounds. 

 In the natural state, consequently, these carrots contain 0*098 

 per cent, of nitrogen, or 0*612 of protein compounds. The ge- 

 neral composition of the carrots in their natural state thus was as 

 follows : — 



I. Experiment, II. Experiment. Average. 



Water .... 88-567 88-867 88-717 

 Organic matters containing ni- 

 trogen, and capable of producing 



flesh .... '612 -612 '612 



Organic matters not containing ^ 

 nitrogen, and fitted to support 

 animal heat and for the forma- 

 tion of fat . . . 10-124 9-815 9-970 



Inorganic substances (ash) . -697 '706 '701 



100-000 100-000 100-000 



Dried at 212° the general composition of carrots, grown in 

 1852, is as follows : — 



I. Experiment. II. Experiment. Average. 



Nitrogenised substances (flesh- 

 forming principles) . . 5-462 5-462 5-462 



Substances not containing nitrogen 



(heat and fat producing matters) 88-438 88-278 88-358 



Inorganic substances (ash) . 6-100 6-260 6-180' 



100-000 100-000 100-000 



It will be observed that the composition of the carrots grown 

 in 1851 was almost identical with that of the carrots grown in 

 1852. In round numbers carrots may, therefore, be assumed to 



