Il.—Tue Bermupva Istanns. Parr I1V.—Gerorocy anp Patr- 
ONTOLOGY, AND Parr V.—Awn Account oF THE CoraL REEFs. 
By Appison E. VERRILU. 
Tue writer published a preliminary paper on the geology of these 
islands in 1900,* giving the results of his studies there in 1898. 
During another visit to the islands, in 1901, he had opportunities to 
make many additional studies and to obtain additional photographs, 
especially of some excellent sections laid bare by the great hurricane 
of 1900. The present report, which contains these later results, 
has been delayed, partly because of his desire to again visit the 
islands to study some points more fully. But as there may not be 
such an opportunity, at present, it is now thought best to print it. 
Imperfect as it must be, it will be of value to some of the numerous 
students who now annually visit the islands. 
CONTENTS: 
Part IV.—I. GroLoGcy. 
. Character of the Rocks. 
. Greater Bermuda. 
Bermudas not a true Atoll. 
. Voleanic Character of the Bermuda Foundation. 
. Emergence of the Land. 
. Evolution of Greater Bermuda; Pliocene Bermuda. 
Bermuda in the Glacial Period. 
. Post-glacial Bermuda ; Subsidence. 
. Reélevation of Bermuda. 
. Consolidation of the Sands ; formation of the AXolian Limestones and ‘‘ base 
rock.” 
. Unconsolidated Sands; no consolidation much below low-tide level. 
. Surface Hardening and Infiltration by Sea-water and Spray. 
. Compact Limestones ; Building Stones. 
. Pliocene Bermuda; Walsingham formation. 
a. Compact Limestones. 
b. Red Clay layers, with extinct Land Snails. 
15. Beach-rock with Marine Fossils; Devonshire formation ; Champlain Period. 
a. Devonshire formation. 
b. Fossils of the Beach-rocks. 
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* American Journal of Science, ix, pp. 3138-40, with cuts in text. 
Trans. Conn. Acap., Vou. XII. 4 JuNE, 1905. 
