73 
Fuego. I have in my collection a great many fish from the fossiliferous 
limestone near Brazil, which are considered by Agassiz as referable to 
this period. 
The extent of the Chalk formation cannot be more strongly impressed 
on the reader, than by transporting him from the shores of Kent and 
Sussex into Southern India, and showing him at Trichinopoly and 
Pondicherry fossils decidedly cretaceous. I am indebted to the late 
Mr. Kaye for a series of these beautiful fossils, who brought them for 
my inspection on his arrival in England, since which they have been 
ably described by my friend, Professor E. Forbes. I cannot omit this 
opportunity of paying a just tribute of praise and respect to the 
memory of Mr. Kaye, who was a zealous geologist, and adding my 
sincere regret at his early death. These fossils are mostly representa- 
tives of the gault and lower greensand, but they contain many forms 
not discovered in England, together with a few others which Professor 
Forbes cannot but consider as tertiary. 
Having briefly pointed out the immense space which the Cretaceous 
period occupies on the surface of the globe, there are one or two 
localities of this formation which must be mentioned, that contain 
genera discovered also in tertiary deposits, besides those of Southern 
India, and considered by some geologists as forming a connecting link 
between the secondary and tertiary divisions. The beds near Maestricht 
and the Faxoe formation consist of a yellowish stone, like the soft 
upper chalk of England, and with similar shells, but to these are added 
genera decidedly tertiary, such as Cypreea, Oliva, Bulla*, &c.; there 
are no black flints, as in the upper chalk deposits of England, but 
occasional nodules of chert and calcedony, together with Ammonites, 
* “ The species however do not agree with those of the tertiary strata, and are associated with 
Cephalopoda characteristic of the Cretaceous, and foreign to the Tertiary epoch.”—Lyell’s 
Elements, 2nd edit. vol. i. p. 397. 
