1867.] JUDD — LINCOLNSHIRE WOLDS. 233 



in height ; and proceeding northward we find it so covered b j a talus 

 of chalk rubble that the outcrop of the Hunstanton series is for the 

 most part hidden. Its presence, however, is sufficiently proved by 

 the occurrence, iu the lower part of the talus, of fragments of red 

 chalk, sometimes in considerable quantities ; these not unfrequently 

 contain the characteristic fossils. A well dug near the church, at 

 Barnetby-le-Wold, reached a bed of red chalk, which I have little 

 doubt is part of the Hunstanton series, although in the very few 

 fragments visible at the time of my visit I failed in my search for 

 fossils. T\'Tiere the talus is cut through by streams, the red chalk is 

 brought to light ; thus, in the sides of the valley in which Elsham is 

 situated, there are several exposui-es of the beds, which are seen to 

 have the usual characters. Between Elsham and Worlaby also the 

 outcrop can be traced ; and at the last-mentioned place we have a 

 very good section. It cannot be ascertained if the sponge-bed be 

 present here ; but the yellow and pink chalk is seen with the dark- red 

 beds below, full of the usual fossils. This is the most northern point in 

 Lincolnshire at which I have succeeded in detecting the Hunstanton 

 series, the slopes of the Wolds to the north of this place being covered 

 with thick masses of chalk-rubble. At South Eerriby I did not 

 succeed in finding the Hunstanton beds ; but in the Museum of this 

 Society is the following note attached to some rock-specimens : — 

 " Section at South Eerriby, near the Humber, Lincolnshire, W. L." 

 (William Lonsdale ?). 



« 1. White chalk." 



" 2. Gritty chalk (specimen a)." 



" 3. Eed chalk (specimen 6) ." 



" 4. Blue clay.'* 



2. has the appearance of belonging to the " sponge-bed." 



3. contains several specimens of Belemnites minimus ; it is not 

 of a very deep colour, and probably came from one of the upper 

 courses of the red Hunstanton limestone. 



Besides the main line of outcrop which has been thus minutely 

 described, the same beds are seen in several outliers and inliers on 

 either side of it. 



b. Outliers. — On Cloven Hill and the hill to the west of Ormsby 

 Wood, as also on Gaumer Hill, occur outliers of considerable size, 

 composed of white chalk, with the Hunstanton limestone lying below 

 it. On Cawkwell Hill, and perhaps also on the hill behind Tetford 

 Parsonage, smaller ones, consisting only of the red beds, are seen. 

 Many other hiUs in the neighbourhood of these might be thought 

 from theii' forms to be capped by beds of solid chalk ; but on close 

 examination their summits are seen to be composed of a very re- 

 markable drift, consisting of chalk-rubble with flints and sand, and 

 enclosing great masses of white chalk, with large slabs from the 

 sponge-bed and the different red layers of the Hunstanton hme- 

 stone. A sketch of a pit in this drift is given in fig. 1. 



c. Inliers. — To the north of the narrow valleys described as being 

 formed by the sources of the Bain, a number of small streams take 

 their rise on the eastern side of the ridge of hard chalk which forms 



