C 37 3 
very likely goes out in queft of food, but travels 
only upon the guard, or rampart, leaving a trail 
behind, as all land fnails do; which hardening 
into a tellaceous fubftance, increafes the dimen¬ 
tions of the outer wall, both in length and thick- 
nefs, from the cell or chamber, to the bottom 
or point of the whole EelemniU, The animal in 
its progrefs and return clafps the whole guard, 
as a fnail does a fmall branch of a tree in the 
gardens; and where the two fides meet, there 
the fulcus is formed, as is evident from the 
laminae. 
Fig. C. reprefents the Bekmnite fplit up the 
middle, with the fiphunculus in the front: a, h. 
exhibit the firft formed cell, or feat of the 
animal ab ovo. As the animal grows larger, it 
forms a fecond cell or chamber b to c, at 
the fame time covers the firft cell, by form¬ 
ing the appendage or guard c, i, which is the 
firft ftage of the Bekmnite. In forming the 
third cell c, frefh laminae or coverings are 
carried on from d, to k, and fo of the reft, e, f, 
g, h; or /, m, n, o. The conical cavity and its 
nucleus are always proportioned to the bulk of 
the Bekmnite, but not to its length: fome are 
four times longer in proportion to the alveolus 
than others; the apex of the conical cavity, 
where 
