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instances, though he doubted even this. He contended that in 
the granular and crystalline granules the original structure 
had been obliterated by molecular changes. This was found 
in some instances where the tubercles could be traced passing 
into the granular condition. 
As to whether Girvanella was a plant or some other 
organism was a matter of doubt, and he would leave that part 
of the question to be decided by Botanists and Zoologists. It 
was, however, clear that the Girvanelle had played a most im- 
portant part in building up the oolitic rocks of which the 
Cotteswold Hills so largely were made up. 
Reference was also made to the other organic remains 
which appeared in the Jurassic limestones in the hills. At the 
base, the remains of Echinodermata were very numerous. — 
They were less in the beds above, and in the Gryphite Grit 
polyzoa had largely contributed to the formation of the rock. 
This fact could not be ascertained unless the sections of the 
limestone were placed under a microscope. To the eye the 
Gryphite Grit seemed to be full of the shells of Gryphea sub- 
lobata, but the microscope showed that the apparently structure- 
less grey limestone in which the shells were embedded was 
full of the remains of life. This was also true of many other 
beds in the Cotteswold Hills, and illustrated that there was 
still plenty of work to be done before we understood how the 
rocks of the Cotteswold Hills had been built up. 
On Tuesday, the 27th Jan., 1891, Mr John Bellows read a 
paper—‘‘ The Roman Villas of Gloucestershire.” 
Professor Harker occupied the Third Meeting on the 24th 
Feb., with two papers— 
1,—“On the Geology of Cirencester Town, chiefly as 
revealed by a deep boring by the Cirencester Water Company, 
and the local water supply generally.” 
2,—“On the discovery, in a Cotteswold stream, of one 
large Oligochaete, new to Britain; and another unrecorded in 
the County. 
The Fourth and last Meeting was on the 24th March. 
The first paper by the Rev. W. Bazeley was on Avebury. 
