92 REV. EDWIN HILL AND PEOF. T. G. BONNEY ON THE 



But if a doubt has arisen concerning- this section, additional 

 evidence has been obtained from another quarter. We were led to 

 examine again the neighbourhood of Eradgate ruins, and a specimen 

 which we succeeded in detaching from the block built into one 

 of the walls showed the syenite to bo intrusive, and indirectly 

 streno-thened the evidence obtained at the little pit on Holgate 

 Hill bv indicating the significance of structures exhibited by its 

 rocks, which had hitherto been a cause of perj)lexity. As these 

 structures have a bearing on some gejieral questions, they are 

 described and discussed in the paper immediately following the 

 present one. 



We found a small intrusive mass of a rock resembling the 

 northern syenite, at the Honestone Quarry, Whittle Hill, in 1890. 

 Since our last visit a pit had been opened at the back of the cottage, 

 in the eastern wall of which we found a rock which at first sight 

 resembled a rotten arkose, and was completely included in the 

 " honestone ; " the latter appearing little altered. In a junction- 

 specimen it seems to diff'er from the normal rock only in being 

 iron-stained, and in containing a much larger number of small grains 

 of limonite (?). The former rock consists of grains of quartz and 

 crvstals of felspar — of rather fragmental aspect — in an obviously 

 microcrystalline groundmass ; the whole being much decomposed, 

 and so broken as to present a superficial resemblance to an arkose. 

 Macroscopically, this rock most nearly corresponds with the " northern 



syenites," with which its geographical posi- 



T -777 tion would lead us to associate it. 



Larqer ovoid bocbi. r\ i.x. -i. £ e i.\. 



-nrry-.n 77-77 ^^ ^^® opposito lacc 01 the samc ex- 



cavation the nmty slate exhibited, appa- 

 rently on a joint-face, two ovoid bodies (the 

 halves) defined by a zone of dusty material, 

 about ^ inch thick. They were about 16 

 inches apart, the connecting line sloping 

 at about 35°. Their longer diameters were 

 vertical, one about 3|- inches, the other 

 about 4 1 inches. The material within and 

 without the ring seemed identical. We 

 cannot offer any suggestion as to their 

 origin. 



8. Brazil Wood. — In 1890 we again 

 visited the quarry at Brazil Wood. In 

 working for the first of our papers — as will 

 be seen from the remarks and quotations 

 in the final one * — we fear that we rather 

 slurred over this locality, as it had already received so much notice. 

 The result is a useful warning to geologists not to neglect even 

 a locus classicus when new methods of investigation have been 

 devised, or the point of view has been materially altered. We may, 



* Quart. Journ. Geol. Soc. vol. xxxvi. (1880) p. 349. 



