Viii CONTENTS 



Page 

 CHAP. XIV.— SOILS. The Soil and its Properties— Tillage of Soils— Different Soils employed in 



Horticulture — Ingredients of Soils — Sources of Nitrogen — Do Plants assimilate Free Nitrogen? 



— Azalea Culture ____ 131 



CHAP. XV. — MANUEES. Organic Manures — Inorganic Manures — The Effect of Manures - - 154 



CHAP. XVI.— TOOLS, INSTEUMENTS, &c, USED IN GAEDENS. Tools— Cutting Instru- 

 ments — Instruments used in Laying Out Ground Lines — Machines — Utensils — Miscellaneous 

 Articles - - - 173 



CHAP. XVII. — GAEDEN STEUCTUEES. Walls— Glass-houses, Pits, and Frames— Miscel- 

 laneous Structures - - - ........... 196 



LIST OF PLATES 



TEA EOSES— 1, Comtesse De Nadaillac : 2, The Bride ; 3, Madame Cusin. 



CATTLE Y A LABI ATA. 



CYPEIPEDIUMS — 1, Insigne, Var. ; 2, Chamberlainianum ; 3, Evenor. 



