![XIX.
<i>On the importance of knowing and accurately discriminating</i>
F
<scp>ossil</scp>
-S
<scp>hells</scp>
,
<i>as the means of identifying particular Beds of the</i>
S
<scp>trata</scp>
,
<i>in which they are inclosed: with a list of</i>
279
<i>species or varieties of shells, of which the several stratigraphical and geographical localities are mentioned, which seem to require the particular and minute attention of the collectors and examiners of fossil shells in their natural deposits</i>]()
XIX.
<i>On the importance of knowing and accurately discriminating</i>
F
<scp>ossil</scp>
-S
<scp>hells</scp>
,
<i>as the means of identifying particular Beds of the</i>
S
<scp>trata</scp>
,
<i>in which they are inclosed: with a list of</i>
279
<i>species or varieties of shells, of which the several stratigraphical and geographical localities are mentioned, which seem to require the particular and minute attention of the collectors and examiners of fossil shells in their natural deposits</i>Farey, John · Philosophical Magazine Series 1 · 1819