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FRUITS AND VEGETABLES UNDER GLASS 



well then to gradually drop to yj as the Mushrooms begin to appear. They may 

 develop somewhat more slowlj' at this degree, but will more than make up for 

 the time in solidity and weight. 



It is curious that while the culture of Mushrooms is so very simple, with 

 but few details to note, it is more or less often a failure. This may be due to 

 different causes. Here is an instance from my own experience. Some years ago 

 two lots of spawn, secured from two different places, were used in a bed. The 

 result was that one-half of the crop was satisfactory while the other half was a 

 complete failure. This was sure enough proof that the failure was due to poor 

 spawn. However, houses handling Mushroom spawn are, as a rule, particular 

 as to its quality, since they know well enough the importance of fresh spawn. 



Until recent years Mushroom growers relied mainly upon the English Mill 

 Tract spawn, and this is still used by many; but there has been much less demand 

 for it since the introduction of the Pure Culture spawn. This latter has made 

 many friends because of its productivity, growing heavy Mushrooms in large 

 clusters. It is, however, decidedly more prolific by spawning in a temperature 

 five degrees lower than that recommended for the English spawn. Either kind 

 may be relied upon to give satisfaction if the surroundings are adapted to a 

 healthy growth, and this cannot be obtained in a house which dries out too 

 C|uickly. 



