CiRC. 159. 



F. Arnold Lees, in the 'Naturalist,' Sept., 1879, pp. 17-19, and July, iSSo, pp. 

 181-185. Fungi are mentioned by W. West, 'Naturalist,' Nov., 1881, pp. 61-63, 

 and Coleoptera by H. Crowiher, 'Naturalist,' Aug., 1877, p. 8. A list of Scar- 

 croft Birds, by W. H. Hay, is in 'Naturalist,' Oct., Nov., and Dec, 1S79, pp. 

 34-38, 59, 75. A Report, with notes of species observed, of the 'S'. N.U. at 

 Wetherby in 1877, is in 'Naturalist,' June, 1S77, pp. 175-176. 



WEEK-END ARRANGEMENTS.— The Headquarters of the Union 

 will be at the Angel Hotel, Wetherby. Terms: — rVom Saturday evening to Mon- 

 day evening, 13/-. Members requiring accommodation to communicate 

 direct with the proprietor, Mr. W. Gaythorpe, not later than July 17th. 



ROUTES.— 



I.— The main party, led by Messrs. John Jackson, M. P.S., F. Arnold Lees, 

 M.R.C.S., W. Nelson, J. W. Taylor, F.L.S., and W. Denison Roebuck, F.L.S., 

 and accompanied by Rev. W. Fowler, M.A., will investigate the neighbourhood of 

 Collingham, Linton Spring, etc., starting from Collingham Bridge Station on arrival 

 of 10-46 a.m. train from Leeds and the 12-35 P-™- f'om Church Fenton. Such 

 of the members as desire a longer walk should proceed by Devonshire Wood and 

 Stockeld Park to Spofforth Station in time for the 4-54 p.m. train for Wetherby. 



2. — Members who wish to investigate the Wharfe banks from Thorp Arch- 

 Station by Flint Mill to Wetherby, will leave Thorp Arch Station on the arrival 

 of the 10-59 a.m. from Leeds and 11-12 am. train from Church Fenton. 



3. — Geologists will meet at Wetherby Station on arrival of 10-52 a.m. train 

 from Leeds and 11-17 a.m. train from Church Fenton, and proceed to examine the 

 sections near the New Station. They will then go by 12-6 p.m. train to Thorp 

 Arch, and work up the left bank of the Wharfe to Wetherby. 



4. — Afternoon Parties. — Members arriving by later trains will find no 

 difficulty in following the routes laid down, and may possibly even overtake the 

 early parties. 



THE DISTRICT.— Wetherby is situated at the apex of the great bend 

 which the river Wharfe makes between Collingham and Thorp Arch, and the scene 

 of the excursion comprises the picturesque banks of the river between these points, 

 as well as the country round .Stockeld Park and Linton Spring. 



GEOLOGY.— 



Mr. Arthur R. Dwerryhouse, B. Sc. , F.G.S., writes that good sections of the 

 Lower Magnesian Limestone are to be seen in the gorge of the river at Falcon 

 Cliffs (?) where there are good examples of contortions produced by irregular solution 

 of the limestone. Under favourable conditions the Middle Marls may be seen- 

 nearer to Wetherby, but in the case of clear sections not being available their position 

 is indicated by a widening of the gorge. This gorge is one of a series which were 

 produced during the Glacial Period by the deflection of the pre-glacial streams by 

 the Vale of York Glacier. The pre-glacial river passed out into the Vale of York 

 over the site of the town of Wetherby, deep excavations for sewerage purposes 

 having been made in the town without touching the bed-rock. If time should per- 

 mit the sections in the railway cuttings near the new station at Wetherby will be 

 examined. The limestone is here intersected by a series of open joints, which it 

 would be interesting to plumb. In addition to these open joints, there are others 

 about a foot in width, which are filled with a sandy material. To the north of 

 Wetherby there are several good sections in the Millstone Grit, which could be visited 

 by members staying the week-end. There are also a number of glacial drainage 

 channels (dry valleys) in the neighbourhood of the town. 



BOTANY.— 



Mr. John Jackson, M.P.S., writes that near Collingham Bridge, on the Linton 

 side, grow Hemp Agrimony, Senecio enicifolitis, Valeriana officinalis, Tansy, Popii- 

 lus alba. On the high side of Linton Common occur a number of lime-loving 

 plants such as Polygala vulgaris, Hypericum 7uontanuin, Rock Rose, Gentiana 

 amarella, Aspenila cynanchica. In a hedge, north of the common, grows Astragalus 

 glycyphyllos ; near Linton, leading to Wetherby, occurs Saponaria officinalis ; near 

 Woodhall Banks Farm grows abundantly Habenaria hifolia. The .Spindle Tree, 

 Dogwood, Viburnum opulus, several species of Galium occur in the hedges. The 

 Stockeld Woods should be interesting and a number of bog and moi3ture-lo\'ing 

 plants grow in the low fields half way betwixt Wetherby and Spofforth. 



