xx 
Fig. 
145. 
146. 
147. 
148. 
149. 
150. 
151. 
152. 
153. 
154, 
155. 
156. 
LIST OF ILLUSTRATIONS 
Choice heads of lettuce saved for the production of seed 
Double frames are sometimes used for forcing purposes 
Wooden mushroom houses at Kennett Square, Pa. ~---- 
A modern commercial mushroom range at Kennett 
Square, Pa. Built of concrete and tile. Frost proof 
and fire proof____- See eer es Sex 
A New Jersey double duty house. Mushrooms are 
grown in the cellar, and plants and flowers in the 
greenhouse above __ = 
Mushroom beds in a modern house______--------------- 
Composting manure for the growing of mushrooms_--- 
Drying bricks of mushroom spawn 
A good crop of mushrooms___--_------.---_----------- 
A morning’s picking. Note variation in size__..--__-__ 
Baskets of mushrooms packed ready for the covers____ 
A wagonload of mushrooms en route to the shipping 
SOO ceeuneecevicemsticemannannesteace caw cekmeeneS 
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