@misc{_Nature_1894,
 year={1894},
 rights={Domena publiczna (Public domain)},
 publisher={Macmillan and Co.},
 language={eng},
 type={czasopismo},
 title={Nature : a Weekly Illustrated Journal of Science. Volume 50, 1894 July 12, [No. 1289]},
 keywords={nauki matematyczno-przyrodnicze, nauka},
}