236 Supplementary Note to Prof. Owen's Paper. 



The block unfortunately arrived too late for insertion in its proper 

 place in the article. — Edit. 



Lower jaw and teeth of Cestracion Philippi, half natural size. The letters indicate the corre- 

 sponding rows of teeth seen in iStrophodus medius, Owen; figured in Plate VII. herewith, (See 

 Prof. Owen's article, p. 193.) 



COI2-K,ESI=035ri3:E]3^CE, 



GEOLOGICAL NOTES OJST NORTHAMPTONSHIRE, &c. 



SiE, — I am glad to see that Professor Morris, in his recent 

 Paper on the Oolites of the Midland Counties in the March number of 

 the Geological MAOAzms, has confirmed an opinion I long ago main- 

 tained, that some of the beds which he describes in Lincolnshire and 

 Northamptonshire belong rather to the Inferior than the Great Oolite, 

 to which they have been hitherto referred by the Geological Surveyors, 

 and with whom, if I remember right, Mr. Morris then agreed. He 

 seems to have forgotten, or probably was not aware, that I had written 

 a short paper on the geology of the neighbourhood of Grantham, for 

 the Cotswold Club, in 1850, since printed in their Proceedings; and 

 a short notice on the Inferior Oolite in parts of North Hants, in the 

 Annals of Natural History in 1857. In these I stated, in effect, that, 

 after a careful examination of the sections, and comparison of the 

 fossils with those of the Cotswold area, with which I was familiar,^ I 

 had arrived at the conclusion that certain strata, immediately overlying 

 the Lias to which he refers should be more properly assigned to the 

 Inferior Oolite, and I added that they required a further and closer 

 examination. I have visited most of the localities in Lincolnshire, 

 1 Proceedings of the Geol. See, 1850, toI. vi. pt. l,and 1851. 



