The present work is an attempt to bring together in some sort of organized form all such information that would link mycology (other than the involvement of fungi in food spoilage) to the food industry. It may be justly criticized for its brevity and, in some instances, will probably be criticized the philosophy expressed. For this the writer makes no apologies. In the first instance, the present discussion is by no means intended to be an exhaustive treatment of the subject. On the contrary, if it serves in some small measure to alert the student to the vast potential resident in fungi, its purpose will have been served.