156 i in president's address. 



The Middle Coral bed is overlain by a rich shelly Oolite, abound- 

 ing in many Bpecies of Mollusca that are not found in the Pea-grit 



-. and notably appear here. Several species of Ammonites, that 

 well characterise this zone, as Stephanoceras Humphriesianum, S. Brong- 

 niarti, S. coronation, S. Braikenridgii, S. Brocchi, S. Gervillii, Harpoceras 



rbyi, with several species of Gastropods, belonging to the genus 



•otomaria, as P. fasciata, P. elongata, P. punctata, and /'. constricta. 



The Lamellibranchiata Likewise belong to species that are found only 



in tin — • beds. The best typos of this zone of Jurassic life are the 



of Dundry, Zeovil, and Burton Bradstock, in 



and; and the lower half of the " Oolite Ferrugineuse," of Bayeux, 

 in Pra 



The Lower Trigonia bed rests upon the preceding, and consists of a 

 thin-bedded Oolitic Ragstone containing many very fine well-preserved 

 fossil bivalve shells. 



I. almost entirely composed of the valves of Gryphaa 

 sublobata an 1 Beveral othi c shells, imbedded in a hard calcareo-silicemis 

 matrix, which formed an oyster bed in many portions of the 

 Northern Cotterwolds. 



The Globata bed rests upon the preceding; it is a hard, shelly 

 Limestone, full of the shells of Brachiopoda, of which Terebratula 

 globata and Rhynchonella *piii<>.<a are here in abundance. 



The Upper Coral Reef consisting of masses of highly crys- 

 tallised Coralline Limestone, rests upon the Globata bed, Thecosmilia 

 gregaria, Thamnastraa, Tsastraa, Montlivaltia, are here found. The 

 aonitesare Parkinsoni a,nd. Martins it and the Echinoderms are Clypeus 

 Plotii, Echinobrissm clunicularis, Holectypus depressus, Disaster ringens, 

 and Pedina rotata. 



All tie- formations I have thus pass 1 rapidly in review repre- 

 sent a considerable proportion of the stratified rocks of the earth's 

 crust, and embrace many of the Palaeozoic and some of the Lower 

 and Middle m the Mesozoic series. A.11 these ancient forma- 



tions maj be studied Erom Cheltenham as a centre without requiring 

 the student to spend one qj . his home, thus Bhowingwhat 



a remarkable centre in tie' midland district this locality is for 

 < Leological Jtudy. 



I now turn to another subject upon which I desire to say a few 

 words to this annual gathering of Midland Naturalists relating to the 

 progress which the Natural S ave made (luring the last half 



• ir\ . At the beginning of that period comparatively little attention 



paid to OUT EaVOUrite 'tier b] the Universities or 



scholastic bodies, ft is true that S at Cambridge, Buckland, 



in ;. in Edinburgh, ha I i Geology ; am! 



1 ' 1 ' i I his splendid and 



o aparative 



• »mj : I ».-. Allm uiu was lectui ■ itany, in Trinit; 



Dublin; and the late sir William Hooker, on the same subjeot, in 



jgow; but Biological See neral was little attended to in 



