HILL: GEOLOGY OF JAMAICA. 3 
PAGE 
HG Bowdon and Aed Formations ra s ar rr .,,,. BZ 
he Bun DRE BSa „os. aa ne 
The May Gn Ba 2.2. .,.3 o Tn Coen © 34 | 
The Porgus Formation... 05 da tue. us Sg 
LO Menamoneal FONTANON er 2... 9 V 9*4 0.1100 
wetensandnelktion e u 0. e RAN. s ou aD 
"he lingston POOL... BE 
abo Elevado. 6o s ox. M 
The Nature of Reef Rock ; A 90 
Occurrence around the Margins of Jamaica en. DV 
The Coast Reef or Soboruco Ws i 92 
The Barbican Reef . : i ` 92 
The Hopewell Reef. . 92 
Conclusions concerning the E levated Reefs and History of Reef B uild- 
ing Corals in the Jamaican Sequence . . . . «UD 
Miscellaneous Coastal Formations contemporaneous in Origin with the 
Elevated Reefs So 100 
ob OS Balmonth Bormatón=.. 65 u.s. 0... 2 dl 
he Montego Pormation e. sl 
The Bogue Island Formation . a. 103 
Swamps and Morasses . . 3X 103 
Pseudo Atolls of Montego Bay i š 104 
aeneral Geology of Montego Bay i a 105 
The Igneous Rocks of Jamaica . . PU < 100 
Absence of Exposures of Basement Crystallines iN 107 
Classification of the Igneous Rocks Vo n ‘ 107 
The Boulder Material of the Blue Mountain Series ‘ a ie 
The Hornblende-diorites, Porphyries, and Granitoid Recke c W 
Extent and Occurrence en viale a aa UB 
Proofs of Intrusive Nature ' en 1 111 
Evidence of Post-Eocene Age i FC X enr] 
The Low Layton Eruptives s ied S s L 
The supposed Low Layton Volos AO, 112 
Proofs of Pre-Pliocene Age a e 
Metamorphic Influences of the I ‘ertiary Eruptives . . . 114 
Parr III. — PALEONTOLOGY OF THE JAMAICAN SEQUENCE . 115 
Scarcity of Fossiliferous Horizons . . 115 
Influences of Environment upon Life i 115 
Difficulties surrounding Discussion of Jamaican Paleontology 115 
Influences of mistaken Stratigraphic Conceptions upon Paleontologie 
Literature . . i iro 119 
Influences of Environment in producing Peouliaritias of Faunas (0v MIU 
The Cretuccots Fossils ot Jamaloa > «a... 52. ,., T 
sist of reported Species . o r 4.45, .., VUA 117 
Peculiar Generic Association Woe a alike 
The alleged Occurrence of Orbitoides in the Jamalo Cretaceous 118 
Corals of the Jamaican Cretaceous ed vo e dal 
The Rudistean Fauna. . . ‘ res a 122 
The Eocene Faunas. . . i qu . 128 
History and Literature of conflicting Views on ‘the Existence of 
ee 3. 129 
the Eocene in Jamaica . , 
