235 bytes added
, 02:19, 6 October 2017
{{Bibliographic Record
|Title=The Discovery of Conical Refraction by William Rowan Hamilton and Humphrey Lloyd (1833)
|Resource Type=journal article
|Author=George Sarton,
|Year=1932
|Journal=Isis
|Volume=17
|Number=1
|Pages=154-170
}}