291 
1914-15.] Chalk Boulders from Aberdeen, etc. 
were laid down under conditions not at present recognised in any chalk of 
the British Islands. The fragments of shell are probably derived from 
Bryozoa, for pieces which can certainly be distinguished as that organism 
increase at the same time. Like other series which have been described 
in these pages, they seem to present a sequence, a sequence in which shelly 
fragments increase and terrigenous matter becomes gradually intermixed 
with the deposit. The sequence seems continued in a limestone consisting 
almost entirely of shell fragments, pieces of Bryozoa and Foraminifera 
(G 21). The Foraminifera are, however, no longer Globigerinse and Textu- 
larians, but of forms essentially of shallower water type, and there is 
evidence of much terrigenous material in the shape of large grains. 
Notwithstanding the dissimilarity in the nature of the deposit, three of 
these specimens contain the same vegetable material as those of Belhelvie. 
That amongst these fragments there should occur pieces of chalk consisting 
entirely of Bryozoan remains seems a fitting end to the sequence. It 
would be extremely interesting to know if a series of specimens taken 
at close intervals immediately below the chalk with Bryozoa in Denmark 
would show anything like the passage above described. 
If these fragments represent a succession, one could infer from the 
gradual increase of terrigeneous matter and of Bryozoan fragments a 
gradual shallowing of the water, and indications of the gradual uplift of 
the land at the close of the Cretaceous epoch. Linked as they are to the 
Belhelvie series by the occurrence of the same kind of vegetable remains, 
a wide door is opened for speculation as to whether the chalk of Scotland 
may not at one time have continued upwards and have included higher 
members of the Cretaceous series than have yet been found in England. 
List of Fossils contained in the Flints from Aberdeenshire. 
Belemnitella mucronata, Schloth. 
Inoceramus Giovieri, Sow. 
Lima cretacea Woods. 
Pecten cretosus, Defr. 
„ sexcostata, Woods. 
Septifer lineatus, Sow. 
Spondyhbs latus ?, Sow. 
„ spinosus, Sow. (young). 
Rliynchonella plicatilis, Sow. 
„ Reedensis, Eth.). 
Terehratula carnea, Sow. 
Scalpellum maximum, Sow. 
Gidaris sceptrifera, Mant. 
Gonulus alhogalerus, Leske. 
Holaster Icevis ? (de Luc). 
Ecliinocorys scutatus, Leske. 
Parasmilia centralis, Mant. 
Goscinopora infundibuliformis, 
Goldf. 
Ventriculites deeurrens, T. Smith. 
„ impressus, T. Smith. 
„ radiatus, Mant. 
