THE CLIFTON PARK SYSTEM OF FARMING and laying down land to grass

http://www.soilandhealth.org/01aglibrary/010128elliot/010128toc.html

And in the cases previously alluded to, I am satisfied that a still better result would have been obtained had I, when first laying down the land in question, been acquainted with the deep-rooting chicory, burnet, and kidney vetch, and the advantage of using, from a vegetable-matter-creating point of view, a large amount of cocksfoot and yarrow.

http://www.soilandhealth.org/01aglibrary/010128elliot/010128ch3.html 

Improved Inner Kaimrig Mixture. Cocksfoot, 10; Meadow Fescue, 5; Tall Fescue, 4; Tall Oat-like Grass, 3; Hard Fescue, 1; Rough-stalked Meadow Grass, 1; Smooth-stalked Meadow Grass, 1; Golden Oat Grass, 1/2; Italian Ryegrass, 3; White Clover, 2; Alsike Clover, 1; Late-flowering Red Clover, 2; Kidney Vetch, 2-1/2; Chicory, 3; Burnet, 8; Sheep's Parsley, 1; Yarrow, 1/2. Total, 48 lb. per acre.

...

During the summer of 1898 we had a severe drought, which showed conspicuously the advantage of using drought-resisting plants. I this year observed, what had before escaped my notice, the great drought-resisting power of the late-flowering red clover, which is particularly to be recommended for light soils, and I am now inclined to place it, as a drough-tresisting plant, on a level with chicory, burnet, and kidney vetch.