36 PRIMARY OR PALÆOZOIC ROCKS,—CASE vu. 
LOWER SILURIAN. 
1. Brown SLATE. List No. Rb 12B. 
Section 26, Spring Plains. 4 sheet 
13 N.E. 
2. WHITE SLATE. List No. Rb 16s. 
Section 26, Spring Plains. } sheet 
13 N.E. 
3. PURPLE SLATE. 
Near Newstead. } sheet 15 N.W. 
4, YELLOW SLATE. Map No. Rc 5. 
Crisis Company, Durham Lead. 
4 sheet 63 S.E. 
5. Grey-AND-YELLOW SLATE. 
Map No. Re 9. 
Gully, near Grenville. % sheet 
63 S.E. 
The yellow portion is in very thin 
lamin. 
6. PURPLE SLATE. ListNo.Rb 12s. 
Section 26, Spring Plains. sheet 
13 N.E. 
7, WHITE-AND-PURPLE SLATE. 
Map No. Fb 46. 
List No. Rb 13B. 
Section 29, Spring Plains. } sheet 
13 N.E. 
Containing portion of a graptolite. 
8. DRAB-COLORED SLATE. 
i ` Map No, Re 16. 
One mile above mouth of William- 
son’s Creek. + sheet 63 S.E. 
9. WHITE-AND- YELLOW SLATE. 
Map No. Ra 116. 
Deep Creek, Moolort. 4 sheet 52 
N.E. 
10. RED SLATE. Map No. Fb 46. 
Section 29, Spring Plains. } sheet 
13 N.E. 
Containing graptolites. 
11. Grey SLATE. Map No. Fb 35. 
Section 50, Spring Plains. {sheet 
13 N.E. 
Containing hymenocaris. 
{List No. Rb 138, 
12. RED SLATE. } Map No. Fb 46. 
Section 29, Spring Plains. } sheet 
13 N.E. : 

13. YELLOW-AND-WHITE SLATE. 
List No. Rb 10n. 
Section 26, Spring Plains, {sheet 
13 N.E. 
14. Stary SHALE. 
List No. Rb 268. 
Section 5, Lyell. 4 sheet 13 N.W. 
15. Rep, WHITE AND YELLOW 
SHALE. List No. Rb 108, 
Section 26, Spring Plains. } sheet 
13 N.E. 
Soft, and banded red, white and 
yellow. 
16. GREEN SLATE. 
Red Jacket Claim, Ballarat. 
17. Grey, Suaty SHALE. 
Map No. Re 19. 
Williamson’s Creek. $ sheet 63 
S.E. 
18. SLATY SHALE. Map No. Re 5. 
Crisis Company, Durham Lead. 
4 sheet 63 S.E. 
(See Table of Analyses, page 94.) 
Very soft. 
19. BLUISH-GREY SLATE. 
, Map No. Ra 21. 
Welshman’s Reef, Sandy Creek. 
4 sheet 14 S.W. 
20. OLIVE-COLORED SLATE. 
Map No. Re 23. 
Williamson’s Creek. 4 sheet 63 
S.E. 
21. SLATY SHALE. 
Map No. Re 1. 
Garibaldi Company's Claim. 
4 sheet 63 S.E. 
Contains embedded crystals of iron 
pyrites (mundic). 
22, Grey SLATE. Map No. Rc 6. 
Grenville Company’s Claim, Dur- 
ham Lead. + sheet 63 S.E. 
Soft and satiny, with ferruginous 
markings on the planes of bedding. 
23. YELLOW SLATE. List No. Sd6. 
Containing graptolites. 
