heese.-- Manures for Dairy Farms.-- Letter from Hon. Harris
Lewis.-- How to make more and better Manure on Dairy Farms.--
How to save and apply it.-- Letter from T. L. Harison, Esq. 101

CHAPTER XXIII.

Management of Manures on Grain Farms.-- Letter from Hon. Geo.
Geddes.-- Grain on Dairy Farms.-- Sheep on Grain Farms.-- Visit
to John Johnston.-- Mr. Lawes' Wheat-field.-- Mr. Geddes and
Clover.-- Gypsum and Clover as Manures. 111

CHAPTER XXIV.

The Cheapest Manure a Farmer can use.-- Clover vs. Tillage.-- As
Plant-Food.-- Constituents of a Crop of Clover, as compared with
one of Wheat.-- Making a Farm Rich by Growing Clover. 127

CHAPTER XXV.

Dr. Voelcker's Experiments on Clover.-- Lawes and Gilbert's on
Wheat.-- Clover Roots per Acre.-- Manures for Wheat.-- Liebig's
Manure Theory.-- Peruvian Guano on Wheat.-- Manures and the
Quality of Wheat.-- Ammonia.-- Over 50 Bushels of Wheat to the
Acre. 135

CHAPTER XXVI.

Experiments on Clover Soils from Burcott Lodge Farm, Leighton
Buzzard.-- Soil from Part of 11-acre Field twice Mown for Hay.--
Soil from do. once Mown for Hay and left for Seed.-- Amount of
Roots left in the Soil by different Crops.-- Manures for Wheat. 149

CHAPTER XXVII.

Lawes and Gilbert's Experiments on Wheat.-- Most Valuable and
Instructive Tables now first made accessible to the American
Farmer.-- The growth of Wheat Year after Year on the same Land,
unmanured, with Farm-yard Manure, and with various Organic and
Inorganic Fertilizers. 170

CHAPTER XXVIII.

Lime as a Manure.-- Prof. Way's Experiments.-- The uses of Lime in
the Soil.-- Lime in this Country.-- Composts with Lime. 215

CHAPTER XXIX.

Manures for Barley.-- Composition of Barley, grain and straw.--
Valuable Tables giving the Results of Lawes and Gilbert's
Experiments on the growth of Barley, Year after Year, on the
same Land, without Manure, and with different kinds of Manure.--
Manure and Rotation of Crops. 227

CHAPTER XXX.

Manures for Oats.-- Experiments at Rothamsted.-- Experiments of
Mr. Bath of Virginia.-- At Moreton Farm. 252

CHAPTER XXXI.

Manures for Potatoes.-- Peruvian Guano for Potatoes.-- Manure from
different Foods.-- Experiment