Circular 179). 



Igoi-ksbi ve Baturalist s' '(anion. 



president : a. H. PAWSON, J.P., F.L.S. Famley. 

 IbOn. Secretary : T. SHEPPARD, F.G.S., Municipal Museum, Hull. 



5Local Secretavs for tbis /Ifteeting : 



T. W. WOODHEAD, F.L.S., Technical College, Huddersfield. 



THE 179TH MEETING 



WILT. BE HELD AT 



HEBDEN BRIDGE, 



FOR THE INVESTIGATION OF THE 



HEBDEN AND CRIMSWORTH VALLEYS, 



ON 



Saturday, June Ilth, 1904. 



RAILWAY ARRANGEMENTS.— Through return tickets at pleasure 

 party rates will be issued at all stations on the G.C., G.N., H. & B., L. & V'., 

 L. & N.W., Midland, and N.E. Railways which have booking arrangements for 

 Hebden Bridge to Members and Associates of the Y.N.U. surrendering the Certificate 

 noted below. Tickets taken on Friday, June loth, will be available 

 for return on Monday, June 13th. Where through bookings are not 

 in operation Members may book to most convenient junction, and re-book to 

 destination ; the reduced fares being available for each stage of the journey. 



N.B.— The Railway Booking Clerks will only grant these reduced 

 tares to Members and Associates producing a Special eertificate 

 signed by the Secretary of the Union. Members and Associates 

 wishing for this Certificate must apply to Mr. Sheppard for it. 

 and must enclose a stamped directed envelope and their current 

 card of membership of the Union, which latter will be returned 

 with the Certificate. At stations on the N.E. Rly. tickets at the 

 reduced fares will be issued on production of the signed card of 

 membership. 



BOOKS AND MAPS.— The whole area is included in Sheet 88 N.W. 

 of the Original One-Inch Ordnance Survey. This may also be had geologically 

 coloured. In the New Survey it is mostly included in Sheet 77. The "Botanical 

 Map of Leeds and Halifax District," by Smith & Moss, shows the distribution of 

 the vegetation and is accompanied by explanatory text. " The Flora of the 

 Parish of Halifax," by Crump & Crossland, includes the Hebden Bridge district, 

 and gives a ver)' complete account of botli phanerogams and cryptogams. Davis & 

 Lee's " West Yorkshire," and the Geological Survey Memoir should be consulted ; 

 also Spencer in "Proc. Yorks. Geol. and Polyt. Soc," vol. 13, pp. 391 — 394 ; and 

 Wheelton Hind, "Q. T- G. S.," vol. 57, pp. 373 — 374. 



THE DISTRICT, Five miles west of Hebden Bridge the axis of the 

 I'ennine anticlinal forms the boundary of Yorkshire and Lancashire. From this 

 escarpment (Black Hamelden 1574 ft., Jackson's Ridge 1573 ft.) the' plateau 

 graduall}' falling to the east, in accordance with the strata, is entirely composed oi' 

 the lowest memljer of the Millstone Grit — the Kinderscout. Most of its surface is 

 moorland ; the more distant, cotton-grass ; the edges heather, heath-pasture, or 

 upland farm land. Only wliat is to-day the main stream, the Calder, cuts through 

 tiiis upheaved plateau and forms the Todmorden gorge. The rest come down oft 

 its surface. The Hebden is the chief one, gathering the waters from the north by 

 trilnitaries from Greave Clough, Walsliaw Dean, and Crimsworth Dean, on its wa}- 

 lo Hebden Bridge. y\nother small stream, the Golden, similar in its course to the 

 Hebden, joins the Calder half-a-mile before its junction with the latter, with 

 I tc])tonstall perched on tlie hill between them. These valleys all present parallel 

 Iratures. In their upper reaches, mere shallow depressions, they develoj) into 

 (l(;e])ly cut doughs, as they penetrate the Kinderscout and erode the softer shales 

 of tlic Pendleside series below. In this portion ihey are well wooded all up their 

 steep sides witli either a fringe of cliff-like (Kinderscout) rocks at the top, as is 



