44 MUSHROOMS, HOW TO GROW THEM. 



changes of atmospheric temperature and moisture, and 

 to drying out. In midwinter they may be all right, but 

 as spring advances and the sun's brightness and heat 

 increase, the susceptibility of the beds to become dry 

 also increases. 



In Frames in the Greenhouses Mr. J. G. Gard- 

 ner has a range of greenhouses some 900 feet long — the 

 longest unbroken string of glasshouses that I know of — 

 for the forcing of fruit and vegetables in winter ; grapes, 

 peaches, nectarines, figs, tomatoes, cucumbers, snap 

 beans, peas, lettuce. This range is divided into sev- 

 eral compartments, to accommodate the different varie- 

 ties of crops, also so that some can be run as succes- 

 sion houses. In order to make the most of everj'- 

 thing, market-gardener-like, he doubles up his crops 

 wherever possible, and for this end he finds no crop 

 more amenable and profitable than mushrooms. It 



Fig. 13. Wide Bed with Pathway above. 



matters nothing to him whether the house is cold or 

 warm, he can grow mushrooms in it anyway, and in 

 order to be master of the situation he makes his mush- 

 room beds in hotbed frames inside the greenhouses. By 

 attending to ventilating or keeping close, or covering up 

 or leaving bare, he can properly regulate the temperature 



