GIVEN OFF BY PLANTS DURING THEIR GROWTH. 53 



Table VI. — Percentages of Ash in Dry Matter. 



Description of Plants and Manure. 



In Corn. 



In Straw 

 and Chaff. 



In 



Cuttings. 



In Plant ; 

 (Clover).' 



f Unmanured 



Wheat < Mineral Manure 



( Mineral and Amnion. Manure 



Barley < Mineral Manure 



[ Mineral and Amnion. Manure 



tfeans | Mineral Manure . . . 



p / Unmanured 



reas *\ Mineral Manure . . . 



Clover < Mineral Manure . . . 



( Mineral and Ammon. Manure 



2*84 



2- 75 



3- 30 



10.11 



12-56 

 14*42 



21-71 

 18-95 

 16-0 





3-28 



3- 80 



4- 18 



14-34 



13- 20 



14- 1 



14-46 

 18-70 

 14-1 





3-19 



3*55 



15-69 

 15-14 







3*15 

 3-85 



17-64 

 23-0 













14- 28 



15- 11 

 14-15 



In Table IV. the dry matter in the several parts of the speci- 

 mens is given, the quantities being calculated upon the entire 

 produce of the jars. Excluding the clover-plants, which do not 

 compare fairly with the rest, and those also having the ammoni- 

 acal manure, which were evidently injured by it, we see at least 

 some general uniformity in the amount of dry matter produced ; 

 the beans, however, which were of all the plants the most healthy, 

 yielding not only an. amount almost identical with the mineral 

 and the unmanured soils, but higher than any of the rest. And 

 if we refer to the last column of the Table, we see that in their 

 cases especially, but also notably in those of the peas, the seed 

 (which in both is so highly nitrogenous) shows a much higher 

 proportion to the entire produce than in the cereals. 



These actual quantities of dry matters produced, though 

 indicating perhaps to some extent the healthy development of 

 theseveral plants under the'conditions provided for them, will be 

 more conveniently studied in their relationship to the amount of 

 water given off, when calculated to a uniform standard, as in 

 the Table which will shortly follow. 



Thefiguresof TableV.,indicatingtheactual amounts of mineral 

 matter fixed in the plants, are also of little independent interest. 

 Those of Table VI. show the per centage of mineral matter in the 

 gross dry substance in the several plants and parts of plants, and 

 indicate it to be in every instance higher than is usual ; though 

 less so in the leguminous seeds than in the cereals, and more in 

 the wheat than in the barley. The proportion is seen, moreover, 

 to vary in the same description of plant with the different con- 



