TY - JOUR T1 - Extracts of Two Letters of Dr. Swammerdam, Concerning Some Animals, That Having Lungs are Yet Found to be without the Arterious Vein; together with Some Other Curious Particulars JF - Philosophical Transactions (1665-1678) VL - 8 SP - 6040 EP - 6042 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1673.0019 M3 - doi:10.1098/rstl.1673.0019 AU - Swammerdam, D. ER -