CiRC. 91. 



ROUTES.— 



I. —Geological, under the leadership of Mr. R. H. Tiddeman, M.A., F.G.S., 

 leaving the conveyances at Cracoe, will proceed to Skelterton, Stebden, 

 Thorpe, and Burnsall, examining the limestone knolls on the way, and 

 returning to Grassington by the river. 

 II. — Members wishing to inspect Ell)olton Cave must send in their names to Mr. 

 C. C. Smith before the i8th inst. 

 III. — A party, under the leadership of prominent members of the Craven Natura- 

 lists' Association, will direct their investigations chiefly to Grass Wood and 

 the adjoining river-banks, which will be sure to repay all the attention that 

 can be paid to it. 



EXPLANATION. 



perpendicular lines. 



BOOKS & MAPS. 



— The whole field of the 

 Excursion is included in 

 Sheet 6i (92 N.E.) One- 

 inch Ordnance Map (also 

 published geologically 

 coloured), and in Sheet 

 134 of the Six-inch Map. 

 The following works may 

 l^e consulted: (i), R. H. 

 Tiddeman, M. A., F.G.S, 

 ' Physical History of the 

 Carboniferous Rocks of 

 Upper Airedale,' (Proc. 

 Yorks. Geol. and Polyt. 

 Soc, 1 891, vol. xi. , part 

 iii, p. 353); (2), L. C. 

 MialJ, F.G.S., F.L.S., 

 * Geology, Natural His- 

 tory, and Pre-historic 

 Antiquities of Craven'; 

 {3), Windsor's 'Flora 

 Cravoniensis'; (4), Davis 

 and Lees' 'West York- 

 shire,' pp. 309—311; (5), 

 Lees' 'Flora of West 

 Yorkshire'; (6), A List of 

 the Fauna was published 

 in the 'Leeds Mercury 

 Weekly Supplement,' 

 July, 1882; (7), Copies 

 of the Circular of the 

 Y.N.U. Excursion to 

 Grassington, Aug., 1882, 

 may still be had, 3d. 

 each ; (8), Report of same, 

 in 'Naturalist, 'Sep. 1882, 

 viii, 30; (9), J. R. Da- 

 kyns, 'On the Changes 

 of the Lower Carbonifer- 

 ous Rocks in Yorkshire 

 from North to South' 

 (Proc. Yorks. Geol. and 

 Polyt. Soc, 1891, vol. 

 -^i-. P- 353)- 



-The Map is divided into square miles by horizontal and 



1 



