(?UOLOOY.] NAT'.RS L HlffFORY. the acted condition of ? surface,-..th-* the phenomena juot now de?ribed are ucthin? more than what wu to be expected frem previous inducrion. These bets, however, not only place beyond dispute the existence of such force, rebut show tlmt, even in detail, the/r. eWq?te ar. eord most satisfactorily wi*h the pred/ctlon$ o*f thefT. It is. not, t?.reiofe, at all ttnlneasonable to ?n?eive, t?t, ?u other oituatimis, pbenommm of the sM?e clMu?Mr hay, been produ?d by the aftme e, anae,.-?,thoup,?h w? ?aay not at present be enableit to trtteo its aonnex?n w/dl the istin? eppearuees so dh6nctly; m4. though .the bets, wken they oc?myed, my bye been mmotk?i,,-or may have taken piaee at periods beyond the reach o? histo- thnony. M. P/{r0n has att?but? the ? abu. ndance of the modern br?ci? of New Holland to the l.ar.?e proporrion ?)f c?ms matter, principally in the form of comminntod shells, whid? is diffused through the siliceous sand of the .shore? in that country *; and as the temperature, espe- cially of the summer, js very h/gh on that part of the coast where this ?ro?lr h0s heel? priocipoJl? .found, ?e increased s?]urien of .c?rbon?tte .of lime by the percol?Lt/ng water, may possibly render it8 formarion more abun(tant there, than in more temperate elimates. ]?ut the ..true tSeory of these con- c?etionsp rander any mo?li(J?ri0n of temperature, ip attended with considerable d//?ul.t?:-,-emd it is certain that the proce? is;ar from bein E ?o?med to the warmer lari- t?de8. Dr. Paris has s/yen an acc?)?int of a modern for- marion of sand-stone on the northern coast of Cornwall
- Pin)n, ��ya?e, 8?c. iL p. 116.
? Trent. of the ?ol. Soc. of Coenwoll, vol. i. p.!,
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