The Oath of a Freeman of the Company of Apothecaries, London.  
YOU shall Swear to be good and true to our Sovereign Lord King WILLIAM, and to be obedient unto, the Master and Wardens of this Company in all lawful manner. You shall also keep secret all the lawful Counsel of this Fellowship. And all manner of Rules, Impositions, and Ordinances that be made, or hereafter shall be made and lawfully ordained, for the good ordering of the said Fellowship, you shall well and truly observe and keep And to your power you shall be well-willing, helping, and furthering to the good Government and Wealth of the said Fellowship: And shall not be party or privy in any Counsel or Device, that may be to the hurt or hindrance of the said Company, or to the overthrowing and breaking of the good Laws and Ordinances of the same; but all such Practices, Counsels and Devices, you shall disclose to the Master and Wardens of the said Company, and them labour to hinder and break, so much as in you lieth.  
So help you GOD.