ON THE MIXED HERBAGE OF PERMANENT MEADOW. 
1255 
Table LI.— Relative predominance of Trifolium repens. 
On only two plots, those receiving mineral manure including potass, did this plant 
ever contribute more than 2 per cent, of the total produce, and the highest amount was 
3'08 per cent. It is shown to he first in quantity among the Leguminosse on one plot 
in 1867, and on three in 1872. It was second on 11 plots in 1862, on eight in 
1867, on four in 1872, and on four in 1877 ; and it was third on three plots in 1862, 
on one in 1867, on six in 1872, and on two in 1877. Yet this plant on no plot in 
either year yielded 5 per cent, of the total produce. Indeed, the cases in which it 
showed prominence among its allies were only those in which the total Leguminosse 
were in comparatively insignificant amount; and where it was in the largest actual 
quantity it was so overpowered by other leguminous species that it did not attain to any 
relative predominance. It occurred in the smallest actual amount where ammonia-salts 
were used ; it was rather more favoured on the nitrate of soda plots; but it gave a 
higher percentage without manure, and the highest of all with purely mineral manures 
containing potass. 
On the whole it would appear that this plant is diminishing on the greater number 
of the plots ; but there are several circumstances to be taken into account. For 
instance, it is certain that neither the percentage tables, nor those showing the weight 
7x2 
