THE GEOLOGIST. 
NOVEMBER, 18G0. 
GEOLOGICAL L 0 C A L I T I E S.— No. L 
FOLKESTONE. 
By S. J. Mackie, F.G.S., F.S.A. 
(Continued from i^age 357.J 
RosiNUS, Walch, Lemery, and others writing after Tn'm followed not 
in the new path opened out to them, but reiterated former absurdities. 
Bruckmann thinks them a kind of pholas, or boring shell ; Bour- 
quet holds to the old notion of their being teeth of whales ; Klein 
even in 1731 regards them as worm-tubes, although three years later 
he comes round to the opinion that they were nearly alHed to the 
Argonautes, Spiruloe, and chambered shells. Dufay, one of the 
numerous writers who followed, states that burnt belemnites have 
the property of being luminous after having been calcined upwards 
of five years. We have not tried the experiment, and cannot, there- 
fore, speak to the accuracy of the assertion. 
Capeller, in 1740, proposes to regard the Belemnite as a species 
of Holothuria, the soft parts of which had become petrified ; the 
opening, in his opinion, being the mouth of the creature for seizing 
its prey, and the alveolus a shell half swallowed. 
Bromell, Ritter (1741), Da Costa (1747), lead up to Linnseus, who 
in his " Systema Natura" has placed them somewhere near the mark. 
Of the authors which now follow. Baker (1748) regarded them as 
marine animals allied to Orthoceras ; Stobaeus (1752), as a species of 
VOL. III. ' 3 D 
