5 
G E 0 L 0 G Y. 
Fig. 2. Fenestella ampla? cast, natural size; 2 a , same, 
enlarged. — p. 710. 
Fig. 3.. Fenestella fossula, part of a frond, natural size ; 3 a, 
cast of upper surface, enlarged .; b, inner inferior surface, enlarged. 
— p. 710. 
Fig, 4. Fenestella gracilis, .part of a frond, natural size. — p. 
711. 
Fig. 5. 5 a, Fenestella ? natural size. 
Fig. 6. Chetetes crinita, form of corallum, size much dimi- 
nished; 6 a, size and closeness of columns; 6 b, outer surface of 
corallum, natural size; 6 c, same, enlarged. — p. 711. 
Fig. 7. Chetetes tasmaniensis, part of corallum, natural size ; 
7 a, surface, magnified. — p. 711. 
Fig. 8. Chetetes tasmaniensis, flattened, natural . size 8 a, 
surface, enlarged. . . . . 
Fig. 9. Chetetes ovata, part of a corallum, natural size; 9 a, b, 
columns, enlarged. — p. 712. 
Fig. 10. Chetetes gracilis ; 10 a , columns, enlarged ; 10 Z>, c, 
surface, enlarged. — p. 712. 
Fig. 11, ? natural size.— p. 712. 
Figs. 12-15. Encrinital remains. — p. 712. 
PLATE 12. 
'''Figs. 1, 2, 3, 4, 5, 6, 7, 8. Fruit scales. — p. 714. 
"Fig. 9. Noeggerathia spatulata, natural size. — p. 715. 
'Fig. 10. Noeggerathia media, natural size. — p. 715. 
Jig. 11. Calamites ? .fragments, natural size. — p. 715. 
'Fig. 12; Sphenopteris lobifolia, natural size. — p. 715, 
Fig. 13. Glossopteris Browniana, natural size; a, part of a 
frond magnified 2 diameters; b, cast of under (?) surface of a small 
part, magnified 6 diameters ; c, a clump of fronds, as they grew 
together. — p. 716. 
! Fig. 14. Young of Glossopteris Browniana? — p. 717. 
PLATE 13. 
Fig. 1 a. Glossopteris ampla, basal part of a frond ; b, ter- 
minal part; natural size. — p. 717. 
1 Fig. 2. Glossopteris reticulum, part of a frond, natural size. 
— p. 717. 
Jig. 3. Glossopteris ? natural size. — p. 718. 
Jig. 4. Glossopteris elongata, natural size. — p. 718. 
Jig. 5. Glossopteris? cordata, natural size. — p. 718. 
Jig. 6. Phyllotheca australis, natural size. — p. 718. 
PLATE 14. 
Fig. 1. Phyllotheca australis, whorl of leaflets, natural size. 
— p. 718. 
Jig. 2. Phyllotheca ? natural size. — p. 719. 
i-Figs. 3, 4. Clasteria australis, natural size; 5, enlarged. — p. 
719. 
Fig. 6 a. Anarthrocanna, natural size. — p. 720. 
I Fig. 6 b. Cystoseirites ? — p. 720. 
Jigs. 7, 8. Austrella rigida, natural size. — p. 720. 
Fig. 9. Confervites ? tenella, natural size. — p. 720. 
PLATE 15. 
Fig. 1. Helicerus fuegiensis, natural size; a, section of part'; 
b , section, showing spiral portion ; c, profile of vertical section.— 
p. 720. ; 
Fig. 2, Trigonia Lorentii, natural size; 2 a, profile of vertical 
section ; b, c, teeth of hinge of valves, imperfect. — p. 721. 
Fig. 3 a, b. Turbo — 7—, natural size. — p. 721 
Fig. 4. Nautilus tenuiplanatus, natural size. — p. 721. 
Fig. 5. Ammonites Pickeringi, natural size.— p. 721. • 
Fig. 6. Ammonites — — ? a , section of outer turn of spire. 
Fig. 7. Gsf RiEA — ■ — , natural size.' — p. 722. 
PLATE 16. 
Fig. 1. Vertebra of a Cetacean, natural size.— p. 722. 
Fig. 2. Remains of a fish, allied to Trigla, natural size; a, b, 
scales, enlarged. — p. 722. 
Fig. 3. Remains of a fish, natural size. — p. 722. 
Fig. 4. Calcareous spines, in a concretion of limestone. 
PLATE 17. 
Fig. 1. 2 a, ‘2 h, 'Vertebra 1 of fish; natural size.— p. 722. 
Fig. 3. Callianassa oregonensis, leg, natural size. — p. 722. 
Fig. 4. Balanus , impression of base, natural size. — p. 723. 
Fig. 5. Mya abrupta, side view, natural size ; 5 a, upper view. 
— p. 723. 
Fig. 6. Tpiracia trapezoides, natural size. — p. 723. 
Fig. 7. Solemya ventricosa, natural size; 8, same, of a smaller 
specimen. — p. 723. 
Fig. 9. Donan protexta, cast, natural size. — p. 723. 
Figs. 10, 10 a. Venus bisecta, natural size. — p. 724. 
. Fig. 11. Venus angustifrons, natural size. — p. 724. 
Fig. 12. Venus lamellifera, side view, lamellte of surface 
mutilated ; 12 a, end view of broken specimen, showing the 
lamellae penetrating the enclosing rock. — p. 724. 
Fig. 13. Venus erevi-lineata, cast, natural size. — p. 724. 
PLATE 18. 
Fig. 1. Venus ? lateral view, natural size; 1 a , dorsal 
view. — p. 724. 
. Fig. 2. Lucina acutilineata, lateral view, enlarged one-sixth ; 
2 a, 2 b, other views.- — p. 725. 
Fig. 3. Tellina arctata, natural size; 3 a, dorsal view. — p. 725. 
Fig. 4. Tellina emacerata, natural, size. — p. 725. 
Fig. 5. Tellina albaria, natural size. — p. 725. 
Fig. 6. Nucula divaricata, natural size, in oblique position; 
6 a, lateral profile. — p. 725. 
Fig. 7. Nucula impressa, natural size; a, b, cast of portions of 
exterior shell; c, d, internal casts; e, view of hinge. — p. 726. 
Fig. 8. Pectunculus patulus, cast, natural size; 8 a, end 
view. — p. 726. 
Fig. 9. Pectunculus nitens, natural size; a, b, different views. — 
p. 726. 
Fig. 10. Arca devincta, several specimens in rock, natural 
size; a, portion of exterior shell. unworn. — p. 726. 
Fig. 11. Pectunculus ? a, b, cast, different views. — p. 726. 
