TY  - JOUR
T1  - Observations on the Seed-Vessels and Seeds of Polypodium. In a Letter from Mr Anthony Van Leeuwenhoek, F. R. S.
JF  - Philosophical Transactions (1683-1775)
VL  - 24
SP  - 1868
EP  - 1874
PY  - 1753/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1704.0061
M3  - doi:10.1098/rstl.1704.0061
AU  - van Leeuwenhoek, A.
ER  -