18 Yorkshire Boulder Committee: Its Twelfth Year's Work. 
be referred to B. guadrata, the belemnite common in the 
Yorkshire chalk; they all appear to be of the B. danceolata 
type. This species has not so far been recorded in the chalk of 
this country. I have also had an opportunity of examining 
a series of fairly perfect specimens in the collection of 
Mr. George Miles, of Withernsea, and amongst these examples 
the same fact is noticeable. 
Whilst at Withernsea also I obtained a collection of about 
20 flint casts of echinoderms, usually in d/ack flint. There are 
at least four species, and perhaps five, including Ananchytes, 
Micraster, Discoidea (?), etc. The commonest example resembles 
a small Ananchytes ovatus. Like the belemnites, these flint 
echinoderms have not been found in the Yorkshire chalk; nor 
has the dlack flint, from which they have evidently been derived. 
nding in such profusion of chalk fossils so foreign to 
the neighbouring chalk is very interesting, and opens out new 
problems to solve. 
BOULDERS OBSERVED ON THE EXCURSIONS OF THE 
YORKSHIRE NATURALISTS’ UNION. 
HEXTHORPE FLATS, NEAR DONCASTER. 
Carboniferous limestone (with Hncrinztes). 32 x 25 x g inches. 
Well striated on the top, sub-angular, resting on magnesian 
limestone. 
DIMLINGTON AND EASINGTON. 
ap granites. One pebble and three fairly large boulders ; 
all well rounded. Rhomb-porphyry. 16x 16x 12 inches. 
Reported by Mr. J. W. STATHER, F.G.S. 
ScALBy MILLS, NEAR SCARBOROUGH. 
hen making the new rifle range near here, in September 
1897, the mprtintiny 3 section in boulder clay was visible :— 
Jpper clay (red) ... i 20 feet. 
Lower clay (grey) ... ae ae feet, 
40 feet. 
Of the many hundreds of boulders thrown aside by the work- 
men, from 50 to 75 per cent. were estuarine sandstone from the 
adjacent beds. The remainder consisted of carboniferous rocks, 
whinstone, a few nondescript igneous types, and some secondary 
rocks, among which were two planed and striated boulders of 
chalk, each about 8 feet in diameter. 
Note.—This locality is about 20 miles north of Flamborough 
lead. 
Naturalist, 
