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plants, in all their natural beauty. A few years ago they 
suffered much from tourists, and he felt bound to impose a 
limited restriction by the charge of twopence for each person, 
and the money collected was given to the Children’s Hospital 
at Gloucester. 
The President said he thought Mr Machen had acted 
wisely—a remark applauded by the members of the Club. 
MAY HILL MEETING 
Tuesday, 24th June—The members left the Gloucester 
Station for Longhope, where a quarry in the Ludlow lime- 
stone, near to the station, was examined. It was found to 
be highly fossiliferous, and some fine specimens of Rhynconella 
nucula and Chonetes striatula were picked up. 
The Hon. Secretary, by the aid of diagrams, explained the 
position of the Ludlow beds in the Silurian system, and also 
the lower beds of the same formation, which would be in- 
spected during the day. 
From there to Dursley Cross, where a halt was made at 
some Crystalline Schists which form the core of May Hill, and 
the President requested Dr Smithe to explain what is known of 
their history. He said there was a cunflict of opinion amongst 
Petrographers as to the origin of these changed rocks, and he 
referred the members to the researches of Messrs Bonney, 
Judd, and A. Geikie, as given in the Journal of the Geological 
Society. 
Metamorphism in minerals and fossils afford an insight 
into the changes that had operated in the more ancient rocks. 
For instance, consider the change by which a fossil shell—once 
consisting of molecules of carbonate of lime—becomes altered, 
and the lime partly replaced by silica. The alteration may go 
on until every original particle is completely changed, the 
shape only being left. 
This metamorphism is known as isomorphism. The difti- 
culty in the case of rocks is two-fold—l, change of form; 2, 
change of molecular action. 
