ILLUSTRATIONS

FIG.PAGE

1.Curve showing removal of lime by washing6

2.Cubical “truck” for measuring skinfacing 8

3.Puer wheel" 13

4.Front elevation of puer wheel13

5.End elevation and section of puer wheel14

6.Sir John Turney’s scudding machinefacing 17

7.Curves of ash contents during puering38

8.Diagram of volumenometer62

9. " connexions of electrometric apparatus76

10.Electrometric apparatus78

11.Apparatus for measuring degree of falling83

12.Curves obtained by measuring apparatus85, 86

13.Improved apparatus for measuring degree of falling86

14.Various forms of bacteria in puer liquorsfacing 88

15.B. coli commune" 88

16.B. erodiens (Becker)" 97

17.Plate culture from fresh puer" 97

18. " " puer wheel" 103

19.B. putrificus" 103

20.Organisms in pigeon dung, × 1000104

21.Pure culture of bacillus (d) from sweated skinfacing 106

22. " " " (e) " "" 106

23.B. butyricus (Hueppe)" 112

24.Spirillum volutans (Kutscher), stained to show flagellæ" 112

25. " " " unstained preparation" 112

26.Curves showing rate of hydrolysis129

27.Organisms in bran drench, × 1000240

28.Chains of bran bacteria, × 1000240

29.Bran fermentation, advanced stage241

30.B. furfuris, αfacing 269

31.B. furfuris, β" 269

32.Cultures of α in glucose gelatin268

33.Gas curve (B. furfuris)277