1284 MESSRS. J. B. LAWES, J. H. GILBERT, AND M. T. MASTERS, 
In 1862 it came neither first nor second among miscellaneous plants on any plot, but 
was third on two. In 1867 it was second on one; in 1872 it was first on one, second 
on three, and third on two; in 1877 it was neither first nor second on any plot, and 
third only on one. But notwithstanding this apparent predominance on several 
occasions, it in no case contributed 5 per cent, to the total produce. 
Its highest percentages were on the plots without manure, with superphosphate of 
lime alone, and with the mixed mineral manure, excluding potass. On these plots it, 
for the most part, increased in amount up to the third separation-year, but afterwards 
diminished. It was almost excluded from all the ammonia plots, especially where 
the manuring was highest. With nitrate of soda alone it fared better than with 
ammonia-salts alone, but with nitrate of soda and mineral manure together it speedily 
became reduced to an insignificant amount. Of recent years it has been most abundant 
on the unmanured plots, and on the plot with superphosphate of lime only. 
Thus this plant fortunately only becomes at all prominent under poor conditions of 
manuring, and restricted growth of the herbage generally. 
We now return to the consideration of those Orders no member of which has 
attained such a degree of prominence as to come first, second, or third among the 
miscellaneous plants, or to yield 5 per cent, of the total produce. 
CrU CIFERiE. 
The only representative of this well marked and important family is Cardamine 
pratensis, a plant usually found in damp, rich meadows, and sometimes in great pro¬ 
fusion,-but which has only been observed on two of the experimental plots, and only 
in the third separation-year. That it does not occur more frequently, and in greater 
quantity, is probably due to the good natural drainage afforded by the chalk a few feet 
below the surface. 
Hypericace^e. 
Hypericum perforatumi is the only member of this group found on the plots. It 
has only been found in the samples from the plot receiving the smaller quantity of 
nitrate of soda alone, then only in two of the four separation-years, and in each case 
in very insignificant amount. 
Kosacejs. 
The species of this Order, though so numerous and so widely diffused, do not, as a 
rule, contribute in any very marked proportion to the herbage of pasture land in this 
country. The following species have been observed on the experimental plots : — 
Potentilla reptans .—This plant was found in six samples in 1862, in six in 1867, in 
nine in 1872, and in 10 in 1877, but it was observed on 16 plots in that year. In only 
one case did it contribute O' 25 per cent, to the produce ; in only two 0*1, and in all the 
