PLATE 14. 

 Bacterium acidi lactici. Hiippe. (Lactic Acid Bacillus.) 



I. Gelatin stab culture, five days at 22. The stab 

 canal in nature is somewhat whiter. 



II. Agar streak culture, five days at 22. 



III. Agar stab culture, three days at 22. Stab canal. 



IV. Agar stab culture, three days at 22. Surface 

 growth. 



V. Agar plate, three days at 22. Natural size. 

 VI. Agar plate, three days at 22. X 50. Upper colony 

 superficial; lower colonies deep. Compare also Plate 18, 



VII. 



VII. Gelatin plate, two days at 22. Natural size. 

 VIII. Gelatin plate, two days at 22. X 50. Upper colony 

 superficial, lower colonies deep. The superficial colonies 

 may vary very much. Compare also Plate 16, vm, ix; 

 Plate 17, i, ii ; Plate 19, iv, vii." 



IX. Microscopic preparation. Pure culture from an 

 agar colony. X 800. 



X. Potato culture, six days at 22. The air-bubbles on 

 the surface often cover it completely. 



