106 Anniversary Address to the 
Now it is becoming more and more clear that such a change 
of condition occurred over a very wide area in the interval 
between the main mass of the middle and upper jurassic 
types. The researches of Mr Morris do much towards com- 
pleting the demonstration of the nature and extent of these 
changes in the area now occupied by the British Islands, and 
it will be seen hereafter, how, even as far away as Italy, we 
have clear proofs of a similar change of conditions about the 
same epoch. Much may be done towards clearing up the 
details of this matter by more extensive and careful investi- 
gations of the Scottish oolites, guided by the light that is 
opening gradually upon us. Indeed I know of no field more. 
likely to yield fresh laurels to the British geological observer 
than the thorough exploration of Scottish secondary geology. 
In a paper by Professor Buckman, published in the “Annals 
of Natural History” for November last, and one of the many 
interesting contributions to British geology which we owe to 
that active assembly of provincial observers, the Cotteswold 
Naturalists’ Club, the Cornbrash and associated strata of the 
neighbourhood of Cirencester are described in detail, and 
under an economical point of view not always attended to, 
viz. the agricultural value of the soils formed by the several 
oolitic rocks. Through the predominance of phosphoric acid 
and sulphate of lime in the Cornbrash, as compared with the 
“ stone brashes”’ of the Great and Inferior Oolite, the value 
of the soils in the former rock is considerably greater, as 
shewn by the analyses of Professor Voelcker. 
The description of the fossil animals of the nummulitic 
rocks of India, by Vicomte d’Arehiac and Jules Haime, else- 
where alluded to when the monograph of Nummulites was 
mentioned, will, when completed, form a manual of the high- 
est value for the study of this extensive formation in the 
Kast. The part already published contains the account of 
the Corals and Echinoderms (as well as the Nummulites), 
and is preceded by a review of the geology of the nummulitic 
region of India. This chapter is not a mere summary of 
what had previously been known and published. It contains 
much that is new, facts of high value derived from the re- 
searches of our associates, Vicary, A. Fleming, Oldham, R, 
