(hi a Neiv Form of Phosphorite found at Kichinev. 247 



the form of A. Lindseceformis found in the marine series by- 

 some varietal name. At present, however, I think it best to 

 retain them all under the one designation, A. Lindseceformis 

 (Bunbury). 



Of the previously-mentioned horizon, at which A. Lindsece- 

 formis has been found in the strata connected with the 

 Marine Limestones, that on the shore of the Forth at Abden 

 appears to be the lowest. The limestone at this locality, 

 overlying the bed of shale in which the fern occurs, is be- 

 lieved by Mr Bennie and myself to be still lower than the 

 Gilmerton or ISTo. 1 Limestone of the Midlothian field, which 

 is usually considered to be the equivalent of the Main or 

 Hurlet Limestone. If such is the case, then Dr Hunter's 

 discovery at Braidwood will be the next in upward succes- 

 sion, the shale below the Main Limestone, and that of Mr 

 Patton at East Kilbride, the highest in the marine series of 

 our Carboniferous system. Expressed in tabular form in 

 descending order, thus : 



1. Shale above Calderwood Cement "I Kirktonholm Cement 

 Stone {Lingula Limestone of )■ "Works, East Kil- 

 Carluke), . . . . j bride. 



L. Carbonifer- 

 ous Limestone^ 

 Group. 



L. Carbonifer- 

 ous, OR Calci- 

 FEROus Sand- 

 stone Series. 



2. Shale below Main Limestone, . Braidwood. 



Shale below a limestone beneath ' 

 the Midlothian No. 1 Lime- 

 stone {= the Main or Hurlet 



Shore of Firth of 

 Forth, at Abden, 



Limestone), . . . .j near Kinghorn. 



4. Wardie Shales, . . .\ Sl^teford and other 



localities. 



VII. On a New Form of Pliosphorite found at Kichinev, with 

 Analysis. By Thomas W. Drinkwater, Esq., L.E.C.P., 

 F.C.S., Member of the Society of Analysts, etc., 

 Lecturer on Chemistry at the Edinburgh School of 

 Pharmacy. (Specimen exhibited.) 



The form of phosphorite I exhibit this evening is an 

 unusual one, and, I believe, as far as my geological know- 



