vi CONTENTS. 



PAGE 



young and full-grown animals explained — Farm yard 

 manure — its composition and value — Form of dimg-stead and 

 tank recommended — Chemical substances to be applied to 

 prevent the escape of ammonia — State in which manure 

 should be used — Guano — its analysis — method of using it — 

 Bones — their effects on exhausted soils — their composition 

 and mode of action — Super-phosphate of lime — Vitriolized 

 bones — directions. for their preparation— Animal substances 

 occasionally employed as manures — Fish and shell-fish — 

 Flesh — Blood — Skin — Horn — Woollen rags — Hair — Refuse 

 of the glue manufacture. 



CHAPTER IX. 



Means adopted for improving the soil and maintaining 



its fertility by the appUcation of manures 1 43 



Vegetable and mineral manures — Green manuring — Sea- 

 weeds — Kelp — Peat — Peat charcoal — its preparation and use 

 — Composition of peat ashes — Rape-dust — The husk of the 

 oat — Malt-dust, and the bran of wheat — Mineral and saline 

 manures — Artificial manures — Table showing the composi- 

 tion of the substances employed in their preparation — Use 

 of lime as a manure — ^Analyses of Irish limestones — Efiects 

 of lime on the fertility of the soil — ^upon plants — States in 

 which it is applied to the soil — Rules for its application — 

 Marl — Its use as manure — Explanation of the disappoint- 

 ments which sometimes follow its application — Analyses of 

 Irish specimens — Shell-sand — Composition of specimens 

 from l)onegal — Phosphate of lime — Apatite — Discovery of 

 coprolites in the chalk formation — Their value as manure — 

 Existence of phosphoric acid in the Greensand of the North 

 of Ireland — Sulphate of lime — Its employment as a fertilizer 

 — Reports of French agriculturists on its application — Refuse 

 lime and ammoniacal liquor of the gas-works — Preparation 

 and value of sulphate of ammonia — Composts of lime, salt, 

 and peat-mould — Composition of soot. 



ERRATA. 



Fage 37, line 2 from bottom, for per cwt. read grains. 

 „ 109, „ 19 „ top, for and read as. 

 ,, 109, „ 20 „ top, for a* „ and. 

 „ 112, „ 16 „ top, for a«d „ or. 



