Ö4 



Was placed, in combiiiatioii with the water-vahie of the respective 

 parts, the amount of energy which was set free by combustion, 

 could be calculated. 



This heat of combustion was always calculated for the weight of 1 

 gram of nngerminated wheat (initial-weight) ; this was done in the case 

 of both germinated and nngerminated wheat. In this way comparable 

 values were obtained ; the difference in heat of combustion after a 

 definite period of germ iuat ion gave therefore the loss of energy 

 abo\'e referred to. 



Heat of combustion of wheat calculated per gram of the initial-weight, 

 expressed in gram-calories. 



The germination took 

 place at ± 20° C. 



I Average 

 I values 



Loss of energy 



Ungerminated ] 3748-3774-3778-3794—37970 

 After 1 day's germin: 



„ 2 „ „I 3756-3793 



„ 3 „ „ ' 3740 



„ 4 „ „ 3653-3681— 3682 3707— 3707 



11 3 II II Oi3y4 



3498 

 3318 



3778 



3774 

 3740 

 3686 

 3594 

 3498 

 3318 



1st day 



4 

 2nd day 



34 3rd day 



j 54 4th day 



I 92 5th day 



i 96 6th day 



j 180 7th day 



It is clear from these values, which were found for the heat of 

 combustion, tluit the loss of energy during germination steadily 

 increased. The loss of energy in the tiivst two days was slight ; 

 [)rol)ably imbibition had chietly taken place at this stage, whilst the 

 chemical Iransforinations had then only subsidiary importance. 



It can be further deduced from the iigures that between the '2'^ 

 and 3'<i day especially the loss of energy greatly increased, and after 

 that continued to rise. 



If these values for the loss of energy after different lengths of. 

 germination are summarized graphicall\\. a cur\e is obtained, which 

 begins almost horizontally, and rises more and more steeply. 



The loss of energy per hour per kilogram of initial- weight can be 

 roughly calculated from the loss of energy during the different days. 



Tlie loss of energy per gram of initial-weight was after two days 

 4 calories. 



^) The figures are arranged in ascending values, and not chrouologically. 



