CONTENTS xiii 



PAQE8 



themum, 180 — Sweet pea, 180 — Scale of points of florists' 



plants, 180. 

 Sample BuJes to Govern Exhibitions 181 



Massachusetts Horticultural Society rules, 181. 

 Nomenclature Rules 183 



Rules for naming kitchen-garden vegetables, 183 — American 



Pomological Society rules of nomenclature, 183. 

 Emblematic Plants and Flowers 185 



State flowers, 185 — National and regional flowers, 186 — Party 



flowers, 186. 



CHAPTER XI 



Greenhouse and Window-Garden Work 187-201 



Greenhouse Practice 187 



Potting earth, 187 — Suggestions for potting plants, 188 — Wat- 

 ering greenhouse and window plants, 188 — Liquid manure for 

 greenhouses, 188. 



Lists of Plants 189 



Twenty-five plants adapted to window-gardens, 189 — Vegetable- 

 growing under glass, 190 — Twenty-five useful aquatic and sub- 

 aquatic plants for outdoor use, 191 — Commercial plants and 

 flowers, or "florists' plants," 191. 



The Heating of Greenhouses 192 



Methods of proportioning radiating surface for heating of green- 

 houses, 192 — Size of pipes connecting radiating surface and the 

 boiler or heater, 194 — Table of dimensions of standard wrought- 

 iron pipe, 194 — To design heating surface, 195. 



Other Infor7nation relating to Heating 195 



Diameters for chimney flues, 195 — Effects of wind in cooling 

 glass, 196 — Table of radiation for glass, 196 — Radiating surface 

 of pipes, 197 — Method of finding boiler capacity for cast-iron 

 pipe, 198 — Customary temperatures in which plants are grown 

 under glass, 198. 



Various Estimates and Becipes 198 



Percentage of rays of light reflected from glass roofs at various 

 angles of divergence from the perpendicular, 198 — Angle of roof 

 for different heights and widths of house, 199 — Standard flower- 

 pots, 199 — To prevent boilers from filling with sediment or scale, 

 200 — To prepare paper and cloth for hotbed sash, 200 — Paint for 

 hot-water pipes, 200 — Liquid putty for glazing, 201 — Paint for 

 shading greenhouse roofs, 201 — To keep flower-pots clean, 201. 



