XX LIST OF ILLUSTRATIONS. 



Fig. Page 



24. Bacteria, Vibriones, and Leptothrix Filaments found in an 



Infusion of Turnip .. .. .. .. .. .. 358 



25. Organisms found in a Simple Solution of Ferric and 



Ammonic Citrate . . . . . . . . . . . . 364 



26. Organisms found in a Solution of Ferric and Ammonic 



Citrate, with minute fragments of wood . . . . . . 365 



27. Fungus from a Solution of Potash and Ammonia Alum 



with Tartar-emetic .. .. .. .. .. .. 367 



28. Torulse from a Solution of Ammonic Tartrate and Sodic 



Phosphate .. .. .. .. .. .. .. 369 



29. Fungus from a Solution of Ammonic Tartrate and Sodic 



Phosphate .. .. .. .. .. .. .. 371 



30. Organisms from a Neutralized Infusion of Turnip .. 442 



31. Protamcebse, Monads, Torulse, &c., from an Infusion of 



Common Cress .. .. .. .. .. .. 444 



32. Torulse from a Neutralized Infusion of Turnip .. .. 447 



33. Pediastreae from a Solution containing Iron and Ammonic 



Citrate, &c 448 



34. Green and Colourless Organisms from a Solution of Iron 



and Ammonic Citrate .. .. .. .. .. 450 



35. Greenish, Desmid-like Organisms found in a Fluorescent 



Solution of Iron and Ammonic Citrate .. .. .. 453 



36. Spore-like bodies from a Solution of Ammonic Carbonate 



and Sodic Phosphate .. .. .. .. .. 462 



37. Bacteria and Spore-like bodies found in a Solution of 



Ammonic Carbonate and Sodic Phosphate .. .. 463 



38. Fungus found in a Solution of Ammonic Tartrate and 



Sodic Phosphate .. .. .. .. .. .. 466 



