TY  - JOUR
T1  - Some Observations on the Hardness of Shells, and on the Food of the Soal-Fish; By Mr. Peter Collinson, F. R. S.
JF  - Philosophical Transactions (1683-1775)
VL  - 43
SP  - 37
EP  - 39
PY  - 1753/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1744.0013
M3  - doi:10.1098/rstl.1744.0013
AU  - Collinson, P.
ER  -