Circular 198.] 
Igorksbire flaturalists' IDlnion. 
IpresiDent : 
W. EAGLE CLARKE, F.R.S.E., Edinburgh. 
H)lvl6ional Secretary : 
J. J. BURTON, Nunthorpe, R.S.O., Yorkshire. 
1bon. Secretary : 
T. SHEPPARD, F.G.S., Municipal Museum, Hull. 
THE 198TM MEETING 
WILL BE HELD AT 
GUISBOR0UGH, 
ON THE 
Week-end, August 18th to 20th, 1906. 
RAILWAY ARRANGEMENTS.— Through return tickets at pleasure 
party rates will be issued at all stations on the G.C., G.N., H. & B., L. & Y., 
L. & N.W., Midland, and N.E. Railways, which have booking arrangements for 
Guisborough to Members and Associates of the Y.N.U., surrendering the 
Certificate noted below. Tickets taken on Friday, August 17th, will be available 
for return on Tuesday, August 21st. 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 fares to Members, 
and Associates producing a Special Certificate signed by the Secretary of the Unioa. 
Members and Associates wishing for this Certificate must apply to Mr. Sheppard for it. 
At stations on the N.E. Sly. tickets at the reduced fares will be issued on production 
of the signed card of membership. 
THE DISTRICT to be investigated includes the area lying between Rose- 
berry Topping, Kildale, High Cliff, and Slapewath. 
BOOKS AND MAPS.— The whole area is included in Sheet 34. See P. F. 
Kendall's " Glacier Lakes in the Cleveland Hills," "Quarterly Journal " Geol. Soc. , 
1902, and Proc. Yorks. Geol. See, 1903; Phillips' "Geology of Yorkshire,"' 
J. G. Baker's " North Yorkshire," T. Sheppard's " Geological Rambles in East 
Yorkshire," "The Jurassic Rocks of Britain ; Yorkshire," by C. Fox Strangways, 
and Tate & Blake's "Yorkshire Lias." 
HEADQUARTERS.— Buck Hotel, Guisborough. 
ACCOMMODATION will be provided by Mrs. Pybus at the Buck Hotel, 
Guisborough, in strict order of application. Outside sleeping accommodation will 
be arranged for those for whom no room can be found at the hotel. 
Terms : Bed, Breakfast, and Dinner, 7/- per head. 
EVENING MEETINGS.— A Meeting will be held on Saturday at the Buck 
Hotel at 7-0 p.m. Mr. Cosmo Johns, F.G.S., will read a paper, illustrated by 
maps and diagrams, on "Jurassic Ironstone Deposits of Great Britain." Dr. H. C. 
Sorby, F.L.S., will contribute " Notes on the Origin of the Cleveland Ironstone," 
and Mr. M. B. Cotsworth will read a paper on "The Continuous Glacial Period 
ROUTES. — On Saturday morning the members will start from Guisborough 
Market Place for Highcliffe and Roseberry, where they will note the terrace 
formation of the hill, caused by the alternating hard and soft shales and beds of the 
Lias. They will then examine the Cleveland Whin Dyke, which cuts through a 
shoulder of Roseberry, and has been extensively quarried here. The return 
will be by way of Hutton if time serves, or by train from Great Ayton. 
On Monday the members remaining over the week-end will arrange the routes 
to be traversed, but it is hoped that some of the sections will cross tlie moor to 
Kildale Woods which were such a happy hunting ground to the late Rev. John 
Hawell. 
Members who cannot reach Guisborough before 10-9 a.m. on Saturday should 
alight at Hutlon Junction, where Mr. T. A. Lofthouse will meet them and conduct 
them to the earlier party. 
