DESCRIPTION OF PLATE VIII. 
On the Starcli-graniile, hy G. Busk, Esq. 
Fig. 
1, 2, 3, 4, 5. Various forms of starch-granules in " Tons les mois " 
Arrowroot. 
6. Granules beginning to expand. 
7, 8, 9. Farther progressive stages of expansion of the granule of " Tons 
les mois." 
10. Various forms of starch obtained from the Horse-chestnut {u^sculns 
hippocasta7ium). 
11, 12, 13. Granules of the same starch acted upon by sulphuric acid. 
DESCRIPTION OF PLATE IX. 
On Asteridia in Confer vee, hy the Rev. W. Smith. 
1. Filament of Zygnema quininum, Ag., containing Asteridia in various 
stages of development, 
2. 1^ Filaments of Mesocarpus scalaris, Hass., var. )8, in conjugation, and 
3. ' containing Asteridia. 
4. Filament of Zygnema quadratum, Hass., in conjugation. 
5. Filament of the same containing an Asteridium, and auother a repro- 
ductive spore. 
6. Filament of the same, showing a double mode of conjugation in the 
same species. 
On a Fungus in an Oak Tree, hy Prof. E. J. Quekett. 
7. A portion of an oak tree, showing a fungus and masses of crystals, 
in situ. 
8. Fungus magnified 150 diameters. 
9. Large crystal, having fungi in its interior. 
10, A portion of fungus seen within a crystal. 
