368 VINE : POLYZOA AND MICKOZOA OF yORKSIIIRE AND NORFOLK. 
3. Cellulipora sulcata, Seeley. 
4. Proboscina dilatata, d'Orb, 
5. Reptomiilticava mamilla, Reuss. 
6. Stomatopora longiscata, d'Orb. 
Besides the above, Mr. AVhitaker catalogues in the same paper 
two species of Foranimifera, but no Entomostraca : 
1. Cristellaria rotulata, Lamx. 
2. Globigerina cretacea, d'Orb. 
A few expressions of opinion from competent autliorities as to 
the probable horizon of the Red Chalk, may be given before closing 
this part of my paper. 
In 1878, the Rev. E. Maule Cole read a paper before the 
Yorkshire Geological and Polytechnic Society, on " the Red Chalk,"* 
in which rather full details are given of the various sections of the 
Red and Grey Chalk found in Yorkshire. These two terms " Red " 
and ''Grey," Mr. Cole uses "indiscriminately, because I beheve" he 
says " that many beds which present no traces of red colour belong 
to this formation. At the north end of Burdale tunnel there is a 
deposit of upwards of 20 feet, similar in texture to the Red Chalk 
of Speeton, with no trace of flint, of a greyish colour, and showing 
when broken, rich chocolate markings resembling the black spots 
indicating Manganese. It contains Terebralulse, but of a much 
smaller kind than those found so abundantly at Speeton." 
A similar formation, or rather the same, appears at another 
point nearer North Grimston, exposed for a length of several hundred 
yards on the same east side of the valley. On the west side it also 
appears at the base of the chalk, opposite Wharram Station (where 
there are springs at an elevation of 475 feet), with the same peculiar 
markings. It occurs at Dalglely and Nova. It is not White Chalk, 
it cannot be called Chalk Marl exactly, though at Nova and other 
places it is friable and clayish ; but it must be the equivalent of the 
formations known in the south under the terms Chalk Marl, Upper 
Greensand, and Gault," pp. 5. 
In a very elaborate paperf on the lower part of the Upper 
*Proc. Yorksh. Geol. and Polyt. Soc, vol. vii., pp. 1-11. 
t Quart. Journ. Geol. Soc, vol. xliii., pp. 592-593, 1887. 
