i02 Jllr. Farcy's Geological Observations 



thick 3cl Coal-shale upon it, containing Crowstonc, Canister 

 or GalHard, and the 4(h Kock on this, of excellent gray 

 Slate and pavins-stunc, were left off in nfy Snrvev for the 

 Dtrbyshire Report, al Pcnislone (Yorks.), and a little NWot" 

 it, ranginij then almost NW, and proceeding, as I rightly 

 conjectured, for IJuddersfield and Ealand on the Calder 

 (Report i. ]6i), and from the recollection that I had of the 

 range of the strata at Halifax, since 1 was at school there 

 with the late Mr. Robert Pullman in 1783, 1 was not a little 

 :^urpriscd, on visiling \V()odht)use and Headingly NW of 

 Leeds, ni company with my very vjiluable Friend (acquired 

 entirely through a correspondence on these subjects in your 

 Magazine) Mr. Snuthson, in August last, to observe there 

 these three strala with all their usual characteristics and 

 some others, ranging about ENE and dipping southward, 

 making direct for the edge of the Yellow Lime, and against 

 which and the zigzag fault, I satisfied myself by numerous 

 inquiries, that they actually abut near Thorner, the 4th Rock 

 being there elevated, on the SW of the Town, to the level of 

 the Yellow Lime on its E side ! ; and that all the numerous 

 upper strata to these, had made a like but less extensive turn 

 eastward, and had disappeared or basseted northward, instead 

 of abutting in that direction against a fault, as supposed. 



The ran^e of the Jth Rock, as an index to all the rest, 

 may be, from Penistone by May-Thorn, Brake-hole, Al- 

 nionlburv, Huddersfield E, Linley, Ealand, Southowram, 

 J'ank-tnp, 'I'hnrnton, A'lerton, Heaton, Eccleshill in Idle, 

 Stanr.inglev, Bramley vilhige (the famous quarries at the 

 Fall by ihe Leeds and Liverpool Canal, being in the 3d 

 Kock), llcadinsily S, Woodhouse N, Chapel-Allerton, 

 R.junday S ofShadwell, and Thorner. The 3d Rock, I 

 believe, abuts on the Yellow liime and zigzag Fault between 

 Thorner and Hardsea, at a still higher level ! and it seems 

 probable, that this southern dip continues, until the 2d and 

 1st Grit Rocks and 1st Coal-shale and the Limestone-shale 

 are brop<j;ht round to abut on ihe zigzag fault, near to the 

 cdu.e of the Yelknv lime : but still it seems, that a brancl^ 

 from tiie zigzag fault must range westward, not far beyond 

 the Wharf Rivqr pcrhajis, and near Otley, Kcighley, &c. 

 (as mentioned p. 30 of your last number), as otherwise, if 

 the dip coptiniiedj the Mineral Limestones and alternating 

 Toad^tones of the Derbyshire series must basset, N of Otley 

 or W of Riplev, of which I never heard the probability ; but 

 the Limestones and other .strata there seem, as far as I have 

 heard, to answer nearly to l{ie lower part o| Mr. Westgarth 



Forster's 



