Field Experiments on Clover-Seeds. 487 



merit may be noticed, to which I need not allude. It certainly 

 is satisfactory to have two perfectly independent experiments 

 confirming each other in almost every particular. 



Experiments in Permanent Pasture. 



In connection with these clover-experiments I give, in conclu- 

 sion, a short account of experiments on permanent pasture which 

 Mr. Bigge tried for me, at Bourton Grange, with the same top- 

 dressings as were employed in the preceding experiments. 



The field on which the trials were made was laid down in 

 permanent grass in the spring of 18G4. This soil resembles 

 closely in its physical and chemical characters that on which 

 the preceding clover-experiment was tried. 



A fair average sample, dried previously at 212°, on analysis 

 gave the following results : — 



Composition of Soil (^Permanent Pasture) at Bourton Grange, Wenlock. 



Organic matter and water of combination .. .. 5"55 



Oxides of iron 2"51 



Alumina 6'77 



Carbonate of lime 1'62 



Magnesia 1"15 



Potash -54 



Soda "IS 



Sulphuric acid '07 



Phosphoric acid '17 



Insoluble siliceous matter 8147 



100-00 

 This soil, like that from the clover-field, is poor in lime, and 

 contains only a moderate amount of available potash ; it is, how- 

 ever, richer in phosphoric acid, and contains more clay than the 

 clover-soil, and, chemically speaking, is superior to the latter in 

 fertilizing properties. 



An even piece of the permanent grass-field was set aside for 

 experiments, and half an acre divided into 10 plots, of l-20th 

 acre each, which, as regards manure, were treated exactly as the 

 10 plots in the preceding experiments. The top-dressings were 

 sown on the 7th of April, 1865, and the plots mown June 5th, 

 and weighed two days afterwards. 



Before giving the results of the weighings, it may not be un- 

 interesting to the reader to glance at the following notes, which 

 were taken in the field on April 19th and May 3rd, 1865. 



Notes on the Appearance of 10 Experimental Plots of Permanent 

 Grass, April liHh, 1865. 

 Plot 1 (nitrate of soda). — Growth very rapid, plant strong and 

 healthy, colour much darker green than rest of the field. Young 

 seeds look burnt, and some killed. 



