Ill order that .proper accommodalion may be provided it is absolutely riefcessAty 
that those who desire seats in the brakes should advise Mr. J. j. Burton, Rosecroft, 
Nunthorpe, S.O., in respect of both Saturday's and Monday's excursions later 
than the morning of May /2th. 
Accommodation will only be provided for those who so apply for it. 
EVENING MEETINGS. — On the Saturday evening a discussion on the 
Geology of the District will be introduced by Mr. Cosmo Johns, F.G.S. 
It is hoped that members of other sections will come piepared to read papers or 
discuss other Natural History Subjects, and not leave the field entirely to the 
Geologists, 
LEADERS.— Mr. W. Robinson, Mr. |. (, Burton, Mr. George Hodsman, 
and Mr. \V. Walton. 
ROUTES 
Friday. — Those arriving on Friday will find a delightful walk along lludes- 
hope Beck, fSkears' Beck), adjoining the town. 
Saturday. — On arrival of the 8-6 a.m. train, brakes \sill take the party to 
High Force, where all will alight. 
All sections will then take the \'orksliire side of the River Tees, if possible, and 
proceed up stream as far as time will permit. The Geologists, after examining the 
Whin Sill and altered shales and other phenomena al High Force, will cross the river if 
fordable, but if in tlood proceed on the Nor'.h Bank as far .as Cronkley Bridge, and 
there cross into Yorkshire ; examine the Whin Sill and saccharoid Limestones at 
White Force, the disturbance caused by the Burtreeford Dyke, and the exposure of 
Silurian Shales from which slate pencils were manufactured, and then proceed by 
Cronkley Scars past Falcon Clints to Cauldron Snout, and return by Widdy Bank 
to Langdon Beck. All will return to Middleton-in-Teesdale from Langdon Beck 
and High Force Inns. 
(Circumstances uiay necessitate a slight deviation from the above programmed 
May 15th. — I'or those who desire it, a (juiet, short, l)ul extremely interesting 
walk has been arranged. 
Monday. — On arrival of 8-6 a.m. train take Brakes from the Station to 
Limedale ; see Limedale Whinsione (|uarries and dykes : the Tees Valley Water 
Board Reservoirs and sections of the trench ; walk to Grains-o'-th'-Beck Bridge ; 
see exposure of the great (— main) Limestone and Glacial deposits. Frratics from 
I'^den Valley, Lake District, and S.W. of Scotland abound. 
Return by Brakes to Middleton-in-Teesdale. 
During the week-end an opportunity will be afforded of visiting the Whin 
quarries at I'arkend, where the i)encil bed can be seen in relation to the Whin Sill. 
PERMISSION to visit iheir properties has been kindly granted by Lord 
Barnard, the Earl of Strathmore, Messrs. Ord and , iSladdison, George 
Hodsman, Esq., and the Tees Valley Water Board. 
GEOLOGY. — The (ieological Section will Vje officially represented by Mr. 
Cosmo lohns, l'\G.S. who writes: — Lower Carboniferous, from liie Jew ( Ilardra), 
Limestones up to the base of tlie Millstone Grit are exposed togetiier with the 
Great Whin .Sill, an intrusive mass of dolerite tlie m.etaniorphic elfects of which on 
the Limestones and Shales provides some of the most interesting features of the 
district. Both at High Force and Cauldron Snout fine exposures of the Dolerite 
may be seen. At the foot of Cronkley Fell on the Western side of the Burtree- 
ford fault there is an exposure of finely cleaved Skiddaw Slates, highly contorted 
and intersected by mica trap dykes. Higher up the valley, rocks of the BorrowdaJe 
.series occur, and fragments are found in the drift, though the l)eds themselves are 
not visible now. 
The area has been intensely glaciated, moraines abound, and overflow channels 
are connr.on in Limedale. 
Mr. 1. |. Burton, l'".(i.S., writes: — The physical features of the district to 
be investigated are of the highest interest. The Tees rises on Cross Fell, and after 
flowing over bleak moorlands spreads out into a wide sluggish sheet of water known 
as the "wheal.*' From that point it becomes a rapid, turbulent stream for many 
miles. Tile remarkable cascades of Cauldron Snout give a tall of 200 feet oV^ 
columnar basaltic stej's, and five miles t'urther down the stream the river "{% 
precipitated 69 feel in one fall over the basaltic Up of High Force. At High FiToe, 
in the gorge below the falls, the Limestones and Shiles have been so altered Ky'tlftfe 
