206 Rev. W. B. Clarke on the Identity of the Epoch of the 



EXPLANATION OF PLATE IV. 



Sargassum Henslowii. 



Fig. 1. A leaf from the main stem. 



— 2. Ditto from the branches. 



— 3. Vesicles. 



— 4. One of the little tufted ramuli composed of leaves and receptacles. 



— 5. Ditto with vesicles. 4 and 5 magnified. 



Sargassum Vachelltanum. 

 Fig. 1. One of the ultimate ramuli. 



— 2. A vesicle from one of the main branches. 



— 3. Vesicles from the racemes of fructification. 



— 4. Leaf. 



— 5. Part of a raceme. 4 and 5 magnified. 



Sargassum ornatum. 

 Fig. 1. Part of a branch. 



— 2. Leaf from the stem. 



— 3. Vesicles. 



— 4. Raceme of fructification ; the last magnified. 



XXIV. — Remarks on the Identity of the Epoch of the Coal-beds 

 and Palaeozoic Rocks of New South Wales. By the Rev. W. 

 B. Clarke, M.A., F.G.S. &c. 



Having read with great attention and interest the observations 

 of Mr. M'Coy " On the Fossil Botany and Zoology of the Rocks 

 associated with the Coal of Australia/' published in the ' Annals 

 of Natural History ' for September, October and November 1847, 

 I feel impelled to offer a few remarks which I trust will be ad- 

 mitted into the pages of that Journal. 



The specimens which have undergone so close an inquisition 

 on the part of Mr. M'Coy were, as he has already stated, col- 

 lected by me in various parts of the colony of New South Wales, 

 on the eastern or sea-board side of the Cordillera or Dividing 

 Ranges of the Blue Mountains, with the exception of the plants 

 from Mudgee and Guntawang, which localities are on the sum- 

 mit of the western plateaux. By what accident I know not, but 

 it is certain a considerable part of the fossils which I sent to 

 Professor Sedgwick have been lost, for the missing cask which 

 should have accompanied those received by him cannot be heard 

 of. Had that cask reached its destination, it would have been 

 found to contain numerous species both of plants and animals, 

 including Testacea, Zoophytes, Crinoids, &c, which would more 

 fully have confirmed, in some respects, Mr. M'Coy's conclusions. 

 Amongst them were various species from the neighbourhood of 

 Musselbrook, Wollon Hills, Mount Wingan, and the country 



