Micro-organisms of Maple Sap : '-•-". , 



Insolation 507 



Production of alcohol 507 



Production of proteolytic enzyms 509 



Production of diastatic ferments 510 



Production of invertase 510 



Effect of germicides 512 



Formaldehyde 512 



Phenol 513 



Nitrogen requirements 514 



Series A. Glycerin •". I :, 



Series B. Mannit r, 1 r. 



Series C. Dextrose 515 



Table 47. Growth on nitrogen media 515 



Name 516 



B. Brief Description of the Pink Cocci of Maple Sap 516-521 



Morphology 516 



Cultural characters 517 



Physical and biochemical features 519 



Table 48. Acid production on carbohydrate broths.... 520 



C. The Green Fluorescent Bacteria Occurring in Maple Sap. . . .521-602 



Introduction 521 



Preliminary studies upon 42 strains of green fluorescent 



sap bacteria 523 



Isolation r>2:: 



Methods of work 525 



Nutrient broth 526 



Agar medium 526 



Gelatin medium 526 



Rejuvenation and stock 526 



Detailed features of the forty-two strains 527 



Morphology 527 



1. Form 527 



2. Grouping 527 



3. Motility 527 



4. Endospores 527 



5. Capsules 52s 



6. Stains 528 



Aqueous anilin stains 528 



Cultural features 52s 



1. Agar stroke 528 



2. Potato 528 



