C 38 ] 
where the alveolus is firft formed, in fome runs 
up about half the length of the whole Belemniie, 
in others not the fixth part of the whole: but 
the aperture, or upper chamber is equally 
proportionable to the bulk, or circumference 
of the Bekmnite, of whatever fize or fliape ; 
and is the feat or dwelling place of the ani¬ 
mal, that forms the Belemnite, 
Fig. D. Shews the Belemniie in the mod 
perfeB; date we ever find it. 
Fig. E. Is the fufiform Bdemnite found in 
chalk, and the pricked lines, h, c. h, c, fhow 
what the fufiform Belermite was, when pcrfeB, 
with the alveolus d, e, - a fhews where the al¬ 
veolus terminates/' 
Fig. F. Is part of a Belemniie with the Afigu- 
hr Serpula, Serpula Triquetra, Lin. adhering to 
it: marine bodies attached to the Bdemnite 
clearly prove it to be of marine produBion. 
It was found near Lanfdown in the lane lead¬ 
ing from the down to Langridge, Wolley, &c. 
Fig. 45. and B. Were found in a free-done 
pit near'the Oxford road, about half a mile 
beyond the monument on Lanfdown. 
The 
