648 MESSES. NEWTOlSr AND TEALL ON [NoV. 1 898, 



the suggestion made by Dr. Hinde, that they belong to some Palaeo- 

 zoic deposit. The conglomeratic deposits of Jurassic age contain 

 also pebbles of quartzite and vein-quartz. 



The only other rock of sufficient general interest to deserve 

 mention in this connexion is a brown shale from Cape Gertrude, 

 highly charged with minute crystalline groups of selenite. The 

 plant-bearing beds from this locality contain marcasite, which is 

 often coated with selenite. It is probable, therefore, that the 

 selenite found in the shale is of secondary origin, and not due to 

 direct precipitation from saline waters. 



II. FOSSILS. 



The additional information regarding the fossils, which we now 

 possess, will be most conveniently considered, as in the previous 

 notes, under each horizon and locality. Some of the beds, alread}^ 

 indicated, have now been traced at other places, and these facts are 

 strong confirmation that the sequence as inferred from the various 

 altitudes of the beds is substantially correct. 



1.' North of Cape Flora. ' Plant-Bed.' 



Although no further collection of specimens has been made at the 

 original locality on the northern side of Cape Flora, yet a number 

 of similar plant-remains have been met with at two other spots at 

 and near Cape Flora. 



At the bottom of p. 512 of our previous paper, Dr. Nathorst is 

 said to be of opinion that the plants he saw, from the original 

 locality, were of ' Upper Oolite ' age ; this is an error, and we should 

 have written ' Upper Jurassic' What Dr. Nathorst really said, as 

 he points out in a letter, was ' that they more probably belong to 

 the Upper (white) Jurassic than to the Middle (brown).' We are 

 glad of this opportunity of correcting the error and of apologizing 

 to Dr. Nathorst, the more so as there is now found to be a better 

 agreement between the position of this plant-bed and the other 

 strata at Cape Flora than had been supposed ; its position wiU be 

 doubtless in the Oxfordian, at some hundred feet above the Ammonites 

 Lamherti which, as will presently be noticed, has been found just at 

 the base of the basalt. 



(a) A number of small specimens of a brown sandy rock con- 

 taining impressions of plants were collected on the top of Cape 

 Flora at about 900 feet above the sea, and the rock was thought to 

 be in situ, although the specimens were loose on the surface. This 

 rock is somewhat coarser than that from the northern side of Cape 

 Flora, but the plants seem to have the same facies ; conifer-needles 

 are most plentiful, but with these is a piece of a fern, like those 

 referred to Thyrsopteris, and a fragment which seems to be Ginkgo. 

 These plants, it will be seen, occur at some 200 feet higher than 

 those to the north of Cape Flora, but it seems highly probable that 



1 The localities are numbered, for convenience of reference, as they were in 

 our former paper. 



