406 



INDEX. 



Hot-houses, warming with hot 

 water, and principles of 

 the apparatus 

 common tank boiler and 



furnace 



Mr. Rogers boiler de 

 scribed and delineated - 

 hot-water apparatus for a 



vinery 



siphon principle applied - 

 Perkin s hermetically seal 

 ed tubes 



Corbett s mode of heating 

 Handle s method by tanks 

 sun s rays, efficiency of - 

 fermentable substances used 

 to create bottom-heat - 

 necessity of the skillful man 

 agement of artificial heat 

 admission of air to be well 



regulated 



admission of light - 

 proper pitch of roofs 

 Curvilinear roofs proposed 

 foreign plants frequently in 

 troduced into fruit-houses 

 Hyacinth, cultivation of - 

 marks of a fine one - 

 exorbitant prices of, in Hol 

 land - 



Dutch compost for raising 

 culture, forcing 260, 261 

 new varieties, how produced 

 Hyssop - 



Inarching 



Indian cress, tuberous 

 Insects, destroying of 

 Iris, varieties of, and cultivation 

 Persian and snake s head 



species 

 Isabella grapes 



Jargonelle pear 

 Jasmine 

 Jerusalem artichoke 



Kale, culture of 



Kentish cherry 



Knight s theory regarding the 



age of fruits 

 new pears 

 Kohl-rube, culture of 



Lambs lettuce 



Lawns, grasses for - 



Lavender 



Layers, propagation by 



