38 Prof. J. W. Judd. Second Report on Specimens 



A flint with numerous and very well preserved examples of Fora- 

 minif'era was obtained from a depth of 175 feet, and in several 

 sections made from this pebble the following forms were detected : — 



Textularia globuhsa, Ehrb. 



,, sagittula, Dei ranee. 

 Bolivina (?) dilatata, Reuss. 



punctata, d'Orb. 

 Globigerina bulloides, d'Orb. 

 Discorbina globidaris, d'Orb. 

 Botalia ammoniformis, Lamk. 

 Anomalina, sp. 

 Spiroloculina, sp. 



From the same depth of 175 feet a pebble of chert (apparently a 

 silicified dolomitic limestone) yielded the following: — 



Bolivina obsoleta, Ehrb. 

 Globigerina bulloides, d'Orb. 



From a depth of 250 feet a flint pebble was obtained, which has 

 all the appearance under the microscope of being a silicified ooze, 

 crowded with specimens of Globigerina bulloides d'Orb. (a variety 

 with a thick- walled test), and containing also the following 

 species : — 



Rotalia ammoniformis, Lamk. 

 Polymorpliina compressa, d'Orb. 

 Bulvinulina, sp., &c. 



From a depth of 270 feet several flint pebbles were obtained which 

 contained organisms, but these appear to have been partially dis- 

 solved before silicification took place, and hence identification is diffi- 

 cult, They include Globigerina, Discorbina, &c. 



The whole of these fossils are regarded by Professor Rupert 

 Jones as proving that the fragments containing them were derived 

 from the Eocene (Nummnlitic) limestones of Egypt, thus fully con- 

 firming the conclusions of Dr. von Zittel. 



At the depth of 121 feet a pebble of a somewhat different class of 

 rock was obtained. It appears to be an indurated sandstone with 

 detrital fragments of wood, Foraminifera of the following species : — 



Lagena Icevis, Mont. 



,, globosa, Mont. 

 Globigerina, sp. 

 Discorbina, sp. 



and, in addition, a Lithistid sponge-spicule, an ostracod valve 

 (Cythere ?), fragments of spines of Echini, a Radiolarian (?), and 



