In a letter I have received from Mr. Evans, of Dowlais, he says: “I wrote to Mr. George Muller, Bristol, asking him to tell me what he, with his vast experience, thought was my duty. I had lost a child through vaccination, and believed I nearly lost another. My conscience told me vaccination was wrong. Should I obey the law or my conscience? He replied it is my duty to walk with God, according to the light of conscience.”