TY  - JOUR
T1  - A Letter to the Honourable J. Th. Klein, Secretary to the City of Dantzick, from Mr. Peter Collinson, F. R. S. concerning the Migration of Swallows
JF  - Philosophical Transactions (1683-1775)
VL  - 51
SP  - 459
EP  - 464
PY  - 1759/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1759.0042
M3  - doi:10.1098/rstl.1759.0042
AU  - Collinson, P.
ER  -