The Net (substance) The Net (substance) The Net, in alchemy, is an alloy of copper and iron, whose crystal structure induces a network pattern on its surface. It was described in the 17th century by Sir Isaac Newton. Newton produced the substance by following what he regarded as a recipe, encoded in classical mythology, for part of the process of achieving the philosopher's stone. The relevant myth involved the god Vulcan finding his wife Venus (alchemical symbol for copper) in bed with the god Mars (alchemical symbol for iron) Newton's interpretation rested on typical alchemical associations, construing Vulcan as a stand-in for fire,
Pith and substance circumscribed. Cases relating to Pith and Substance.- Citation in the matter of M/s. Sky Gourmet Catering Private Limited V/s Tax Authorities (Commercial Tax and Service Tax) in the matter of Writ Appeal No. 671 to 726 of 2011 (T-Res) decided on 18th day of April, 2011 by Hon'ble High Court of Karnataka at Bangalore may also be seen. Pith and substance Pith and substance is a legal doctrine in Canadian constitutional interpretation used to determine under which head of power a given piece of legislation falls. The doctrine is primarily used when a law is challenged on the basis that