Discovery That the Veins of the Bat's Wing, Which Are Furnished with Valves, Are Endowed with Rythmical Contractility, and That the Onward Flow of Blood Is Accelerated at Each Contraction

T. W. Jones
1850 Proceedings of the Royal Society of London  
doi:10.1098/rspl.1850.0048 fatcat:6jk7lu52a5dehlgdzhsklgeey4