52 



Changes lohic/i take place in the Field 



to come to a standstill, whilst that of carbon-hydrates is pro- 

 ceeding with g-reatly accelerated speed. 



Again it will be seen that plot 5 produced almost exactly the 

 same weight of fresh and of dried clover which was yielded by 

 plot 4, and thus it appeared that in the case before us a week's 

 difference in the time of mowing had neither a beneficial nor an 

 injurious effect. 



The total produce of plot 5 is somewhat greater than that of 

 plot 4 ; this is due, it will be seen, to the circumstance that the 

 last mowing on plot 5 was made a month later than that on plot 

 4. Considering that quite a month was thus allowed for further 

 growth, the additional produce is very trifling, but no doubt the 

 dry state of the weather in July, and the somewhat baked state 

 of the land, checked the further growth of the plant. 



With the more matured condition of clover the percentage of 

 water, it will be seen, fell considerably in the course of a single 

 week ; nevertheless the weight of the fresh produce on plot 6 was 

 greater than that on plot 5, and on plot 7 (pp. 54, 55) greater than 

 on plot 6. The variable proportions of moisture in fresh clover, 

 hoAvever, introduce an element of confusion, wherefore it is 

 better to compare the weight of the perfectly dry produce obtained 



from 



PLOT V. 



Table I. — Clover Experiments. 



h. Composition of Produce dried at 212° Fahr. 



