CiRC. No. 74. 



not developed elsewhere in this part of Yorkshire — then the Grey 

 Sandrock of the Dogger {Lingula bed), the Yellow Sandrock, and 

 lastly, the true Dogger. Owing to the strong S.E. dip these beds 

 plunge one after another beneath the sea. 



The Grey Sandrock of the Dogger constitutes the little platform 

 of Blue Wyke Point, being harder than the striatulus beds below, out 

 of which Blue Wyke has been excavated, and also harder than the 

 Yellow Sandrock above, which has been eaten back to the very base 

 of the cliff Continuing in the direction of the dip (S.E.) the true 

 Dogger is seen to approach the shore line, where it may be con- 

 veniently studied before plunging, in its turn, beneath the sea." The 

 Dogger, as developed in the Peak cliffs and at Blue Wyke Point, 

 exceeds 30 ft. in thickness. It is a chocolate-coloured Sandstone, 

 often somewhat marly, and has a variable charge of iron, in places 

 losing somewhat of its sandy character and becoming oolitic. The 

 upper-beds are probably the most rich in iron, which occurs partly as 

 carbonate. It has never been worked here. The Dogger at this place 

 is remarkable for a number of Nodular beds, the lowest of which is 

 often charged with Terebratula trilmeata. Towards the top is a rich 

 shell-bed, full of Ne7'i7icea cingenda and many other fossils, which 

 probably represents a low part of the Murchisonm-zone.. Most of the 

 shells are now converted into spathic iron, having a thin coating of 

 oxide. 



The Lower Estuarine series, which succeeds the Dogger, is well 

 developed at the Peak, where it constitutes the bulk of the cliffs in 

 successive tiers of Sandstone parted by layers of Shale. A dark Shaly 

 bed containing abundance of a species of Trigonia is often conspicuous 

 — the Ellerbeck bed of the Survey. There is but a partial develop- 

 ment of the Millepore Rock in these cliffs, so that the Middle Estuar- 

 ine can scarcely be said to be separated from the Lower Estuarine. 

 Towards the upper edge of the cliff face, the ' trod ' by which it is 

 possible to ascend is seen to cross some shaly beds which contain 

 fossils of the Scarborough or Grey Limestone series, and this group 

 of beds crops out in the fields a Httle to the north-east of the Peak 

 railway station. 



Botany. 



Mr. Thomas Newbitt, of Whitby, writes : — The northern slopes of 

 the Peak have not yet, so far as I am aware, been fully explored by 

 any botanist, and consequently our explorers may meet with some 

 rarities ; but it must be admitted lliat the district is usually considered 

 a somewhat unpromising field. The hills are too low for Montane 

 species, and little woodland exists. The present season, too, is very 

 backward. The neighbourhood is ' richest in ericetal and sylvestral 

 flowering plants and mosses which affect low hilly districts ' (' North 

 Yorkshire.'). On, or near the edge of, the moors may be found 

 Scirpus pajiciflorus, Tormentilla reptans, Gnaphalium dioicum, Pedi- 

 cularis sylvatica, I7lex Gallii, and U. europceus, and in the damper 

 spots Eriop/ioru/n vaginatiim, Drosera, long and round-leaved, 

 Phiguicula vulgaris, &c. The cliffs facing the sea are also disappoint- 



