HILL: GEOLOGY OF JAMAICA. 139 
Mile Post 74, Falmouth road : — Orbitoides and Nummulites. 
Highgate, St. Mary Parish : — Orbitoides dispansus ; Orbitoides sp. ; 
Textularia; Pulvinulina ; Nummulites. 
Port Antonio, Slide No. 13 :— Globigerina dutertrei, d'Orb. ; Globige- 
rina bulloides, d'Orb.; Miliolina seminulum (Linné), also Catadupa ; 
Nummulites; Amphistegina lessonii, d'Orb. (A. hauerii, d'Orb.) ; Orbi- 
toides fortissii, d'Arch.; Nodosaria; Vaginulina; Orbitoides papyracea, 
(Boubée) ; Discorbina. 
This bed is Eocene. 
Port Antonio, Slide No. 23: — Nummulites sp. ; Orbulina universa, 
d'Orb.; Globigerina bulloides, d'Orb.; Heterostegina sp.; Orbitolites 
complanata, Lam. 
This bed is Eocene. 
13. Port Antonio:— Nummulites; Amphistegina lessonii, d'Orb. ; 
Orbitoides fortissii, d'Orb. ; Orbitoides papyracea, (Boubée) ; Nodosaria ; 
Vaginulina. 
This is Eocene. 
Buff Bay “near Tunnel" (Montpelier Formation at base of Section.) 
— This limestone contains an abundance of Globigerinidw, also many 
Nodosarise. 
Globigerina : — Truncatulina wuellerstorfi, Schwager; Eocene to 
recent. Nodosaria raphanistrum, Linné; Cretaceous to Tertiary. 
Nodosaria pauperata, Cretaceous to Tertiary ; recent. Nodosaria (D) 
aciculata, d'Orb. Nodosaria farcimen, (Soldani) ; Permian to recent. 
We suspect this to be a Tertiary limestone, since Truncatulina wueller- 
storfi begins with Eocene beds. The Globigerinide and Nodosariw 
Prove nothing here, as their range is so great. 
In addition to the localities given, the following have been observed 
from our own collections. 
Port. Antonio (Collection No. 13), a foraminiferal marl made up of 
Nummulins and Orbitoides, with one Rotalia-like form. 
Flint beds of Dover (Collection No. 36):— (1) Section of flint. 
Mostly opalescent amorphous groundmass, — a few spicules and one 
Rotalia-like form. (2) Chalk: Globigerine mostly, with several species 
of Orbitoides. (3) Another chalk, mostly Rotalia-like forms. 
Belmont, St. Elizabeth, clear crystalline calcite, in which are outlined 
Many Foraminifera, Orbitoides being the predominating form. 
One mile south of Port Antonio, in upper part of Richmond beds 
8rading into Cambridge. Nummuline? and Orbitoides. 
Flints at foot of Montpelier Hill: — These are incrusted with silicified 
