FOREWORD 



My attention was directed to the culture 

 and use of mushrooms about 15 years ago. 

 Since that time I have followed the prob- 

 lems of mushroom growing and exploita- 

 tion with increasing interest, especially 

 since undertaking the improvement of 

 spawn-making methods and the establish- 

 ment of spawn-making on a ''pure culture" 

 basis in this country. During this interval 

 I have had the privilege of meeting many 

 persons who have been closely associated 

 with all the different phases of the more im- 

 portant successful and unsuccessful mush- 

 room industries, and likewise with those 

 who have attempted to encourage a more 

 wide-spread appreciation of mushrooms. 

 It is necessary to add that, unfortunately, 

 among the persons whose interests have cen- 



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