xvi LIST OF ILLUSTRATIONS. 



FIG. ^^«= 



28. Bacillus Tieffhemi Ren. and Micrococcus Guignardi Ren. (M. S.) 135 



29. Laminaria sp ■ • ^'*" 



30. Rill-mark ; trail of a seaweed ; tracks of a Polychaet. (M. S.) 143 



31. Chondrites verisimilis Salt. (M. S.) 146 



32. Lithothamnion mamillosum Giimb. ; Syddium melo Sandb. ; 



Bactryllium deplanatum Heer ; Calcareous pebble from a 



lake in Michigan. (M. S.) . . . . • 155 



33. Cymopolia barbata (L.) ; Acicularia Andrussowi Solms ; 



Acicularia sp.; A. SchencH (Mob.); .1. Mediterranea 

 Lamx. ; Omdites margaritula Lamx. ; Penicillus pyra- 

 midalis (Lamx.) (M. S.) . . . • 162 



34. Acetabularia mediterranea Lamx. (Photograph by Mr Edwin 



"Wilson) . . 165 



35. Diplopora; Oyroporella; Penicillus; Ovulites margaritula 



Lam.; Confervites chantra.nsioides (Born.). . . 174 



36. Torbanite ; Pila bibractensis and Reinschia australis . 180 



37. Lithothamnion sp. ; L. suganum Roth. ; Sphaerocodiwm 



Bornemanni Roth. ..... . . 186 



38. Solenopora cmnpacta ifiSilmgs). (M.S.). 189 



39. Nematophycus Logani (Daws.) . .... 196 



40. Nematophycus Storriei Barb. (Photograph by Mr C. A. Barber) 199 



41. Cells of Gycadeoidea gigantea Sew., Osmundites Dowkeri Carr 



and Memecylon with vacuolated contents ; Peronosporites 

 antiqiiarius Smith ; Zygosporites ..... 214 



42. Tracheids of coniferous wood attacked by Trametes radiciperda 



Hart and Agaricus melleus Vahl. . . . 215 



43. Oochytrium, Lepidodendri Ren. ; Polyporxis vaporarius Fr. var. 



succinea ; Cladosporites bipartitus Fel. ; Haplographites 

 catmiger Fel. (M. S.) 217 



44. Cells of fossil plants with fungal hyphae . . . 219 



45. Chara Knowltoni Sew. ; Chara foetida A. Br. {A and B, 



Mr Highley ; C—E, M. S.) . . . . . 224 



46. Chara Bleicheri SuTji. ; Chara? sp. ; C. Wrighti Foihes. (M.S.) 226 



47. Chara KnovMoni Sew. (From block lent by Dr Woodward) 227 



48. Tristichia hypnoides Spreng. ; Podocarpus cupressina Br. and 



Ben. ; Selaginella Oregana Eat. (M. S.) . . . 231 



49. Marchantites erectus (Leek.) (M. S.) 233 



50. Marchantites Sezannensis Sap. (M. S.) . . 235 



51. Muscites polytrichaceus Ren. and Zeill. (M. S.) . . 239 



52. Equisetum maximum Lam. ; E. arvense L. . . . . 246 



53. Equisetum palustre L. (M. S.) 247 



54. Plan of the vascular bundles in an Equisetum stem ; E. 



arvense L. ....... . . 250 



55. Equisetum variegatum Schl. ; E. maximum Lam. . 252 



